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- Le Jeune Syndrome
- Le Merrer Syndrome
- Lead - Medical Test
- Lead Poisoning
- Lead Poisoning - Support Group
- Lead Poisoning, Chelating Agents for - Medication
- Leader Acid Reducer - Medication
- Leader Naproxen Sodium - Medication
- Leader Nicotine Polacrilex - Medication
- Learning Disability / Attention Deficit Disorder - Support Group
- Learning to Talk
- Leber Hereditary Optic Neuropathy
- Leber's Amaurosis
- Leber's Congenital Amaurosis
- Leber's Congenital Amaurosis eGroup - Support Group
- Leber's Congenital Amaurosis eGroup - Blind / Visually Impaired - Support Group
- Leber's Congenital Tapetoretinal Degeneration
- Leber's Congenital Tapetoretinal Dysplasia
- Leber's Disease
- Leber's Optic Atrophy
- Leber's Optic Neuropathy (LHON)
- lecithin - Medication
- Lecithin Natural - Medication
- Lecithin-Softgels - Medication
- Leena - Medication
- leflunomide - Medication
- Leflunomide for rheumatoid arthritis - Medication
- Leg Cramps, Nocturnal
- Leg Injuries
- Leg Problems, Noninjury
- Leg X-Ray - Medical Test
- Legatrin PM - Medication
- Legg Calve Perthes Disease
- Legionellosis
- Legionnaires' Disease
- Legislation Helpline - Support Group
- Leigh Necrotizing Encephalopathy
- Leigh's Disease
- Leigh's Syndrome
- Leiner Disease
- Leiner-Moussous Desquamative Erythroderma
- Leiomyosarcoma of the Uterus
- Leiomyosarcoma, General
- LEMS
- lenalidomide - Medication
- Lennox Gastaut Syndrome
- Lenticular Degeneration, Progressive
- Lenz Dysmorphogenetic Syndrome
- Lenz Dysplasia
- Lenz Microphthalmia Syndrome
- Lenz Syndrome
- LEOPARD Syndrome
- lepirudin - Medication
- Leprechaunism
- Leprosy
- Leprosy Helpline - Support Group
- Leptomeningeal Angiomatosis
- Leptomeningioma
- Leptospiral Jaundice
- Leptospirosis
- Leri Pleonosteosis
- Leri-Weil Dyschondrosteosis
- Leri-Weil Syndrome
- Leri-Weill Disease
- Leroy Disease
- Lesch Nyhan Syndrome
- Lescol - Medication
- Lescol XL - Medication
- Lessina - Medication
- Let's Face It - Support Group
- Let's Face It - Facial Disfigurement - Support Group
- Letairis - Medication
- Lethal Neonatal Dwarfism
- Lethal Osteochondrodysplasia
- letrozole - Medication
- Letterer-Siwe Disease
- Leucovorin - Medication
- leucovorin (oral) - Medication
- Leukemia
- Leukemia and Lymphoma Society, The - Support Group
- Leukemia and Lymphoma Society, The - Cancer - Support Group
- Leukemia, Busulfan for - Medication
- Leukemia, Chlorambcil for - Medication
- Leukemia, Chronic Lymphocytic
- Leukemia, Chronic Myelogenous
- Leukemia, Cytarabine for - Medication
- Leukemia, Fludarabine for - Medication
- Leukemia, Hairy Cell
- Leukemia, Radiation Therapy for
- Leukemia, Rituximab for - Medication
- Leukeran - Medication
- Leukine - Medication
- Leukocytic Anomaly Albinism
- Leukocytic Inclusions with Platelet Abnormality
- Leukocytoclastic Vasculitis
- Leukoderma
- Leukodystrophy
- Leukodystrophy - Support Group
- Leukodystrophy with Rosenthal Fibers
- Leukodystrophy, Globoid Cell
- Leukodystrophy, Krabbe's
- Leukodystrophy, Metachromatic
- Leukoencephalitis Periaxialis Concentric
- Leukotriene modifiers for allergic rhinitis - Medication
- Leukotriene pathway modifiers for long-term control of asthma - Medication
- leuprolide - Medication
- Leustatin - Medication
- levalbuterol - Medication
- Levall - Medication
- Levall 5.0 - Medication
- levamisole - Medication
- Levaquin - Medication
- Levaquin Leva-Pak - Medication
- Levatol - Medication
- Levbid - Medication
- Levels of Evidence for Adult and Pediatric Cancer Treatment Studies (PDQ®): Treatment - Health Professional Information [NCI]
- Levels of Evidence for Cancer Screening and Prevention Studies (PDQ®): Screening - Health Professional Information [NCI]
- Levels of Evidence for Human Studies of Cancer Complementary and Alternative Medicine (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI]
- Levemir - Medication
- Levemir FlexPen - Medication
- levetiracetam - Medication
- Levetiracetam for epilepsy - Medication
- Levine-Critchley Syndrome
- Levitra - Medication
- Levlen - Medication
- Levlite - Medication
- Levo-Dromoran - Medication
- levobetaxolol ophthalmic - Medication
- Levobunolol - Medication
- levobunolol ophthalmic - Medication
- levocabastine ophthalmic - Medication
- levocetirizine - Medication
- levodopa - Medication
- Levodopa medicines for Parkinson's disease - Medication
- levofloxacin (oral) - Medication
- levofloxacin ophthalmic - Medication
- levoleucovorin - Medication
- Levoleucovorin 1 - Medication
- levonorgestrel emergency contraceptive - Medication
- levonorgestrel intrauterine system - Medication
- Levophed Bitartrate - Medication
- Levora - Medication
- levorphanol - Medication
- Levothroid - Medication
- levothyroxine - Medication
- Levoxyl - Medication
- Levsin - Medication
- Levsin SL - Medication
- Levsinex SR - Medication
- Levulan Kerastick - Medication
- Levulosuria
- Levy-Hollister Syndrome
- Levy-Yeboa Syndrome
- Lexapro - Medication
- Lexiscan - Medication
- Lexiva - Medication
- Lexxel - Medication
- Leyden-Moebius Muscular Dystrophy
- Lialda - Medication
- Library of Congress National Library Service for the Blind and Physically Handicapped - Support Group
- Library of Congress National Library Service for the Blind and Physically Handicapped - Support Group
- Library of Congress National Library Service for the Blind and Physically Handicapped - Blind Helpli - Support Group
- Library of Congress National Library Service for the Blind and Physically Handicapped - Disability H - Support Group
- Librax - Medication
- Librax - Medication
- Librium - Medication
- Lice
- Lice Bedding Spray - Medication
- Lice, Lindane for - Medication
- Lice, Malathion for - Medication
- Lice, Permethrin for - Medication
- Lice, Piperonyl Butoxide and Pyrethrins for - Medication
- Lice, Pyrethrin and Piperonyl Butoxide for - Medication
- Lice, Visual Examination for - Medical Test
- Lichen Acuminatus
- Lichen Annularis
- Lichen Planus
- Lichen Planus Sclerosus Atrophicus
- Lichen Psoriasis
- Lichen Ruber Acuminatus
- Lichen Ruber Planus
- Lichen Sclerosus
- Lichen Sclerosus et Atrophicus
- Lichen Urticatus
- licorice - Medication
- LidaMantle - Medication
- Lidex - Medication
- Lidex-E - Medication
- lidocaine and prilocaine topical - Medication
- lidocaine topical - Medication
- lidocaine viscous - Medication
- Lidocream - Medication
- Lidoderm - Medication
- Lidosense5 - Medication
- Life Span and Smoking Calculator
- Life Threatening / Chronic Illness - Support Group
- Life-Prolonging Treatments at End of Life, Deciding About
- Life-Threatening Ill Helpline - Support Group
- LifeRing Secular Recovery - Support Group
- LifeRing Secular Recovery - Support Group
- LifeRing Secular Recovery - Alcohol Abuse - Support Group
- LifeRing Secular Recovery - Drug Abuse - Support Group
- Light Therapy
- Light Therapy (Using), For Seasonal Affective Disorder
- Lightheadedness
- Lighthouse International - Support Group
- Lighthouse International - Blind / Visually Impaired - Support Group
- Lightning / Shock - Support Group
- Lightning Strike and Electric Shock Survivors International, Inc. - Support Group
- Lightning Strike and Electric Shock Survivors International, Inc. - Lightning / Shock - Support Group
- Lightning Strike Survivor List - Support Group
- Lightning Strike Survivor List - Lightning / Shock - Support Group
- Lignac-Fanconi Syndrome
- Limb Body Wall Complex
- Limb Malformations-Dento-Digital Syndrome
- LimbDifferences.org - Support Group
- LimbDifferences.org - Amputation / Limb Deficiency - Support Group
- Limbitrol - Medication
- Limbitrol DS - Medication
- Limbrel - Medication
- Limit Dextrinosis
- Lincocin - Medication
- lincomycin - Medication
- Lindane 1% for scabies - Medication
- Lindane for lice - Medication
- lindane topical - Medication
- Lindau Disease
- Linear Nevus Sebacous Syndrome
- Linear Sebaceous Nevus Sequence
- Linear Sebaceous Nevus Syndrome
- linezolid - Medication
- Lingua Fissurata
- Lingua Nigra
- Lingua Plicata
- Lingua Scrotalis
- Lingua Villosa Nigra
- Linguofacial Dyskinesia
- Linhist-L.A. - Medication
- Lioresal - Medication
- liothyronine - Medication
- Lip and Oral Cavity Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Lip and Oral Cavity Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Lip Pseudocleft-hemangiomatous Branchial Cyst Syndrome
- Lipase - Medical Test
- lipase D deficiency
- LIPD deficiency
- lipid histiocytosis
- Lipid histiocytosis (kerasin type)
- Lipid Panel
- Lipid Profile - Medical Test
- Lipid-Storage Myopathy Associated with SCAD Deficiency
- lipidosis, sphingomyelin
- Lipitor - Medication
- Lipodystrophy
- Lipodystrophy, partial, with Rieger anomaly and short stature
- Lipofen - Medication
- Lipoid Granulomatosis
- Lipoma
- Lipomatosis Dolorosa Morbus Dercum’s
- Lipomatosis of Pancreas, Congenital
- Lipomucopolysaccharidosis Type I
- Lipoprotein Analysis - Medical Test
- lipoprotein lipase deficiency
- lipoprotein lipase, included; LPL, included
- Liposuction
- Lipram - Medication
- LiQsorb - Medication
- Liqui-Char - Medication
- Liqui-Coat HD - Medication
- Liqui-Dual Citra - Medication
- Liqui-Histine-D - Medication
- Liqui-Minic Infant - Medication
- Liquibid - Medication
- Liquibid-D - Medication
- Liquicet - Medication
- Liquid Co-Q10 - Medication
- Liquid PedvaxHIB - Medication
- Liquid Polibar - Medication
- Liquihistine DM - Medication
- Liquimat Light - Medication
- Liquimat Medium - Medication
- lisdexamfetamine - Medication
- lisinopril - Medication
- Lissencephaly
- lissencephaly, type I
- Listeria Infection
- Listeriosis
- Listeriosis
- Litecoat Aspirin - Medication
- Literacy Helpline - Support Group
- lithium - Medication
- Lithium for cluster headaches - Medication
- Lithobid - Medication
- Lithostat - Medication
- Lithotripsy (ESWL) for Kidney Stones, Deciding About
- Little Hearts, Inc. - Support Group
- Little Hearts, Inc. - Heart Disease - Support Group
- Little People of America - Support Group
- Little People of America - Short / Tall - Support Group
- Little People's Research Fund, Inc. - Support Group
- Little People's Research Fund, Inc. - Dwarfism Helpline - Support Group
- Little Tummys - Medication
- Livedo Reticularis and Cerebrovascular Accidents
- Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Liver and Spleen Scan - Medical Test
- Liver Biopsy - Medical Test
- Liver Disease - Support Group
- Liver fluke disease
- Liver Function Panel
- Liver function tests - Medical Test
- Liver Phosphorylase Deficiency
- Liver resection
- Liver tests for infectious mononucleosis - Medical Test
- Living Will
- Living With a Spinal Cord Injury
- Living With More Than One Health Problem
- Livostin - Medication
- Lizard and Snake Bites
- LO-CHS HD
- Lo/Ovral-28 - Medication
- lobar atrophy of the brain
- Lobar Emphysema, Infantile
- Lobar Holoprosencephaly
- Lobar Tension Emphysema in Infancy
- Lobo Disease
- Lobstein Disease (Type I)
- Lobster Claw Deformity
- Lobular Carcinoma of the Minor Salivary Glands
- Localized Infantile Mastocytosis
- Localized Prostate Cancer, Should I Have radiation Therapy or a Prostatectomy?
- Locholest - Medication
- Locholest Light - Medication
- Locked In Syndrome
- Lockjaw
- Locks of Love - Support Group
- Locks of Love - Support Group
- Locks of Love - Alopecia Areata Helpline - Support Group
- Locks of Love - Cancer Helpline - Support Group
- Locoid - Medication
- Lodine - Medication
- Lodine XL - Medication
- Lodosyn - Medication
- lodoxamide ophthalmic - Medication
- Lodrane 12 Hour - Medication
- Lodrane 12D - Medication
- Lodrane 24D - Medication
- Lodrane D - Medication
- Lodrane Liquid - Medication
- Loeffler Endomyocardial Fibrosis with Eosinophilia
- Loeffler Fibroplastic Parietal Endocarditis
- Loeffler's Disease
- Loestrin 21 1.5/30 - Medication
- Loestrin 24 Fe - Medication
- Loestrin Fe 1/20 - Medication
- Lofibra - Medication
- LoHist-12D - Medication
- Lohist-DM - Medication
- LoHist-PD - Medication
- Loin Pain Hematuria Syndrome - Support Group
- LoKara - Medication
- Loken Senior Syndrome
- Loken-Senior Syndrome
- lomefloxacin - Medication
- Lomotil - Medication
- lomustine - Medication
- Long Chain Acyl-CoA Dehydrogenase Deficiency
- Long QT Syndrome Type 1
- Long QT Syndrome without Deafness
- Long-acting beta2-agonists for long-term control of asthma - Medication
- Long-Term Care for Stroke, Deciding About
- Loniten - Medication
- Lonox - Medication
- Look Good...Feel Better - Support Group
- Look Good...Feel Better - Cancer Helpline - Support Group
- Loop electrosurgical excision procedure (LEEP) for abnormal cervical cell changes
- Loop electrosurgical excision procedure (LEEP) for genital warts
- loperamide (oral) - Medication
- Lopid - Medication
- lopinavir and ritonavir - Medication
- Lopressor - Medication
- Lopressor HCT - Medication
- Loprox - Medication
- Lorabid - Medication
- Lorabid Pulvules - Medication
- loracarbef - Medication
- Loralie's Story: It's Never Too Late
- loratadine - Medication
- loratadine and pseudoephedrine - Medication
- lorazepam (injection) - Medication
- lorazepam (oral) - Medication
- Lorcet 10/650 - Medication
- Lorcet Plus - Medication
- Loroxide - Medication
- Lortab 10/500 - Medication
- Lortab 2.5/500 - Medication
- Lortab 5/500 - Medication
- Lortab 7.5/500 - Medication
- Lortab Elixir - Medication
- Lortuss DM - Medication
- Lortuss HC - Medication
- losartan - Medication
- LoSeasonique - Medication
- Losing Weight: Deciding About a Diet Plan
- Loss, Grief, and Bereavement (PDQ®): Supportive care - Health Professional Information [NCI]
- Loss, Grief, and Bereavement (PDQ®): Supportive care - Patient Information [NCI]
- Lota
- Lotemax - Medication
- Lotensin - Medication
- Lotensin HCT - Medication
- loteprednol and tobramycin ophthalmic - Medication
- loteprednol ophthalmic - Medication
- Lotrel - Medication
- Lotrimin - Medication
- Lotrimin Jock Itch Powder - Medication
- Lotrisone - Medication
- Lotronex - Medication
- Louis-Bar Syndrome
- lovastatin - Medication
- lovastatin and niacin - Medication
- Lovaza - Medication
- Lovenox - Medication
- Low Back Pain
- Low Back Pain (Chronic), Anticonvulsants for - Medication
- Low Back Pain, Acetaminophen for - Medication
- Low Back Pain, Anesthetic or Corticosteroid Injections for - Medication
- Low Back Pain, Deciding About MRI
- Low Back Pain, Deciding About Spinal Manipulation
- Low Back Pain, History and Physical Examination for - Medical Test
- Low Back Pain, IDET (Intradiscal Electrothermic Therapy) for
- Low Back Pain, Opiate Pain Relievers for - Medication
- Low Back Pain, Tricyclic and Tetracyclic Antidepressants for - Medication
- Low back pain: Exercises to reduce pain
- Low back pain: Should I have an MRI?
- Low back pain: Should I have spinal manipulation?
- Low Blood Sugar (Hypoglycemia) in People Without Diabetes
- Low Blood Sugar from Diabetes
- Low blood sugar from taking insulin, Dealing with
- Low blood sugar from taking oral diabetes medicine, Dealing with
- Low blood sugar in children with diabetes, Dealing with
- Low blood sugar in children with diabetes, Preventing
- Low Blood Sugar with Gestational Diabetes, Dealing With
- Low Density B-lipoprotein Deficiency
- Low Imperforate Anus
- Low Potassium Syndrome
- Low-Carb Diets for Weight Loss
- Low-Density Beta Lipoprotein Deficiency
- Low-Dose Aspirin Therapy
- Low-dose vaginal estrogen for dryness and atrophy - Medication
- Low-Grade Papillary Carcinoma of the Palate
- Low-molecular-weight heparins for deep vein thrombosis - Medication
- Low-Ogestrel-28 - Medication
- Low-salt diet for cirrhosis, Eating a
- Low-Salt Diet for Heart Failure
- Low-salt diets: Eating out
- Low-Sodium Diet for Heart Failure
- Lowe Syndrome
- Lowe Syndrome - Support Group
- Lowe Syndrome Association - Support Group
- Lowe Syndrome Association - Lowe Syndrome - Support Group
- Lower Gastrointestinal Series - Medical Test
- Lower Leg Injuries
- Lower Leg Problems, Noninjury
- loxapine - Medication
- Loxitane - Medication
- Loxitane C - Medication
- Lozi-Flur - Medication
- Lozol - Medication
- lubiprostone - Medication
- Lubs Syndrome
- Lucentis - Medication
- Ludiomil - Medication
- Lues, Congenital
- Lufyllin - Medication
- Lufyllin-GG - Medication
- Lumbar Pain
- Lumbar Puncture - Medical Test
- Lumbar Spinal Stenosis
- Lumbar Spinal Stenosis, Epidural Steroid Injections for - Medication
- Lumigan - Medication
- Lumpectomy for Breast Cancer
- Lumpectomy or a Mastectomy to Treat Early-Stage Breast Cancer, Deciding About
- Lumps Under the Skin
- Lunatomalacia
- Lunelle - Medication
- Lunesta - Medication
- Lung Angiogram - Medical Test
- Lung Biopsy - Medical Test
- Lung Cancer
- Lung Cancer Alliance - Support Group
- Lung Cancer Alliance - Cancer Helpline - Support Group
- Lung Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Lung Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Lung Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Lung Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Lung Cancer, History and Physical Examination for - Medical Test
- Lung Cancer, Medical History and Physical Examination for - Medical Test
- Lung Cancer, Physical Examination and Medical History for - Medical Test
- Lung Development (Fetal), Antenatal Corticosteroids for - Medication
- Lung Disease Helpline - Support Group
- Lung Function Testing, Home - Medical Test
- Lung Function Tests - Medical Test
- Lung Nocardiosis
- Lung Scan - Medical Test
- Lung surgery (thoracotomy) for lung cancer
- Lung transplant for cystic fibrosis
- Lupron - Medication
- Lupron Depot - Medication
- Lupron Depot-Gyn - Medication
- Lupron Depot-Ped - Medication
- Lupus
- Lupus - Support Group
- Lupus (Systemic Lupus Erythematosus)
- Lupus Anticoagulant Syndrome
- Lupus, Antimalarial Medications for - Medication
- Lupus, Corticosteroids for - Medication
- Lupus, History and Physical Examination for - Medical Test
- Lupus, Immunosuppressive Medications for - Medication
- Lupus, Medical History and Physical Examination for - Medical Test
- Lupus, Physical Examination and Medical History for - Medical Test
- Luride - Medication
- Luschka-Magendie Foramina Atresia
- Lusonal - Medication
- Lusonex - Medication
- Lustra - Medication
- Lustra-AF - Medication
- Lustra-Ultra - Medication
- Luteinizing Hormone - Medical Test
- Lutera - Medication
- lutropin alfa - Medication
- Lutz-Splendore-Almeida Disease
- Luveris - Medication
- Luvox - Medication
- Luvox CR - Medication
- Luxiq - Medication
- Lybrel - Medication
- Lydia E. Pinkham - Medication
- Lyell Syndrome
- Lyelles Syndrome
- Lyme Disease
- Lyme Disease
- Lyme Disease - Support Group
- Lyme Disease Helpline - Support Group
- Lyme Disease Network - Support Group
- Lyme Disease Network - Lyme Disease - Support Group
- Lyme Disease Test - Medical Test
- Lyme Disease, Antibiotics for - Medication
- Lymph Node Biopsy - Medical Test
- Lymph Node Cancer (Non-Hodgkin's Lymphoma)
- Lymph node removal (lymphadenectomy) for melanoma
- Lymphadenectomy for endometrial cancer
- Lymphadenitis, Regional Nonbacterial
- Lymphadenoid goiter
- Lymphadenopathy (Swollen Lymph Nodes)
- Lymphadenopathy, Angioimmunoblastic with Dysproteinemia
- Lymphangiectasia, Primary Intestinal
- Lymphangiectasis, Primary Intestinal
- Lymphangiectatic Protein-Losing Enteropathy
- Lymphangioleimyomatosis
- Lymphangioleiomatosis
- Lymphangioleiomyomatosis
- Lymphangioleiomyomatosis - Support Group
- Lymphangiomas
- Lymphatic Malformations
- Lymphedema
- Lymphedema - Support Group
- Lymphedema (PDQ®): Supportive care - Health Professional Information [NCI]
- Lymphedema (PDQ®): Supportive care - Patient Information [NCI]
- Lymphedema with Distichiasis
- Lymphedema with Yellow Nails
- Lymphedema, Hereditary
- Lymphedema, Neonatal due to Exudative Enteropathy
- Lymphedema-Distichiasis Syndrome
- Lymphedema: Managing lymphedema
- Lymphocytic Infiltrate of Jessner
- Lymphoma Research Foundation - Support Group
- Lymphoma Research Foundation - Cancer - Support Group
- Lymphoma, Gastric, Non Hodgkins Type
- Lymphoma, Radiation Therapy for
- Lymphoreticulosis, Benign Inoculation
- Lynch Syndromes
- Lyphocin - Medication
- Lyrica - Medication
- lysine - Medication
- Lysodren - Medication
- Lysosomal Acid Lipase Deficiency, Wolman Type
- Lysosomal Alpha-D-Mannosidase Deficiency
- Lysosomal Alpha-N-Acetylgalactosaminidase Deficiency, Schindler Type
- Lysosomal Glucosidase Deficiency
- Lysosomal Glycogen Storage Disease Without Acid Maltase Deficiency
- Lysosomal Storage Disorders