Encyclopedia L-Lz
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L-Lg
- L1 Syndrome
- Laband Syndrome
- Labetalol for high blood pressure during pregnancy
- Labor, Delivery, and Postpartum Period
- Labyrinthitis - Topic Overview
- Lactic Acid
- Lactic acid dehydrogenase (LDH)
- Lactose Intolerance - Topic Overview
- LADD Syndrome
- Lambert-Eaton Myasthenic Syndrome
- Lamotrigine for epilepsy
- Landau Kleffner Syndrome
- Landmine Survivors
- Langer-Giedion Syndrome
- Langerhans Cell Histiocytosis
- Laparoscopic gallbladder surgery for gallstones
- Laparoscopic inguinal hernia repair
- Laparoscopic lymphadenectomy for prostate cancer
- Laparoscopic ovarian drilling (ovarian diathermy) for PCOS
- Laparoscopic surgery for endometriosis
- Laparoscopy
- Laron Syndrome
- Larsen Syndrome
- Laryngeal cancer: Treatment - Patient Information [NCI PDQ]
- Laryngectomy
- Laryngitis - Topic Overview
- Laryngoscopy
- Laser in-situ keratomileusis (LASIK) for nearsightedness
- Laser in-situ keratomileusis for farsightedness (H-LASIK)
- Laser iridotomy for glaucoma
- Laser photocoagulation for age-related macular degeneration
- Laser photocoagulation for diabetic retinopathy
- Laser resurfacing
- Laser surgery for genital warts
- Laser surgery for warts
- Laser trabeculoplasty for glaucoma
- Laser treatment for varicose veins
- Late Effects of Treatment for Childhood Cancer: Treatment - Patient Information [NCI PDQ]
- Laurence Moon Syndrome
- Laxatives
- Lead
- Lead Poisoning
- Lead Poisoning - Topic Overview
- Learning Disability / Attention Deficit Disorder
- Leber Hereditary Optic Neuropathy
- Leber's Congenital Amaurosis
- Leflunomide for rheumatoid arthritis
- Leg Injuries
- Leg Problems, Noninjury
- Legg Calve Perthes Disease
- Legionnaires' Disease
- Legislation Helpline
- Leigh's Disease
- Lennox Gastaut Syndrome
- Lennox-Gastaut Syndrome
- Lenz Microphthalmia Syndrome
- LEOPARD Syndrome
- Leprechaunism
- Leprosy
- Leprosy Helpline
- Leptospirosis
- Leri Pleonosteosis
- Lesch Nyhan Syndrome
- Leucovorin
- Leukemia - Topic Overview
- Leukemia, acute lymphoblastic, adult: Treatment - Patient Information [NCI PDQ]
- Leukemia, acute lymphoblastic, childhood: Treatment - Patient Information [NCI PDQ]
- Leukemia, acute myeloid, adult: Treatment - Patient Information [NCI PDQ]
- Leukemia, acute myeloid, childhood: Treatment - Patient Information [NCI PDQ]
- Leukemia, chronic lymphocytic: Treatment - Patient Information [NCI PDQ]
- Leukemia, hairy cell: Treatment - Health Professional Information [NCI PDQ]
- Leukemia, hairy cell: Treatment - Patient Information [NCI PDQ]
- Leukodystrophy
- Leukodystrophy, Krabbe's
- Leukodystrophy, Metachromatic
- Leukotriene modifiers for allergic rhinitis
- Leukotriene pathway modifiers for long-term control of asthma
- Levels of Evidence for Adult Cancer Treatment Studies: Treatment - Health Professional Information [NCI PDQ]
- Levels of Evidence for Cancer Treatment Studies: Definitions and Use: Screening - Health Professional Information [NCI PDQ]
- Levetiracetam for epilepsy
- Levodopa medications for Parkinson's disease
Lh-Lp
- LH-RH agonists/GnRH agonists for prostate cancer
- Liberatory maneuvers for vertigo
- Lice - Topic Overview
- Lichen Planus
- Lichen Sclerosus
- Life Threatening / Chronic Illness
- Life-Threatening Ill Helpline
- Lifestyle modifications for gastroesophageal reflux disease
- Lifting properly to prevent back injury
- Light Therapy
- Lightning / Shock
- Lindane 1% for scabies
- Lindane for lice
- Lipase
- Lipid Panel
- Lipodystrophy
- Lipoma
- Liposuction
- Lissencephaly
- Listeriosis
- Literacy Helpline
- Lithium for cluster headaches
- Liver and Spleen Scan
- Liver cancer, adult primary: Treatment - Patient Information [NCI PDQ]
- Liver cancer, childhood: Treatment - Patient Information [NCI PDQ]
- Liver Disease
- Liver Function Panel
- Liver resection
- Liver tests for hepatitis C
- Liver tests for infectious mononucleosis
- Living With a Spinal Cord Injury
- Locked In Syndrome
- Loin Pain Hematuria Syndrome
- Loken Senior Syndrome
- Long-acting beta2-agonists for long-term control of asthma
- Loop electrosurgical excision procedure (LEEP) for abnormal cervical cell changes
- Loop electrosurgical excision procedure (LEEP) for genital warts
- Low Back Pain - Topic Overview
- Low-Carb Diets for Weight Loss
- Low-Dose Aspirin Therapy
- Low-dose vaginal estrogen for dryness and atrophy
- Low-molecular-weight heparins for deep vein thrombosis
- Lowe Syndrome
Lq-Lz
- Lumbar Puncture
- Lung Biopsy
- Lung Cancer - Topic Overview
- Lung cancer, non-small cell: Treatment - Patient Information [NCI PDQ]
- Lung cancer, small cell: Treatment - Patient Information [NCI PDQ]
- Lung cancer: Prevention - Health Professional Information [NCI PDQ]
- Lung cancer: Prevention - Patient Information [NCI PDQ]
- Lung cancer: Screening - Patient Information [NCI PDQ]
- Lung Disease Helpline
- Lung Function Tests
- Lung Scan
- Lung surgery (thoracotomy) for lung cancer
- Lung transplantation for cystic fibrosis
- Lupus
- Lupus (Systemic Lupus Erythematosus) - Topic Overview
- Luteinizing Hormone
- Lyme Disease
- Lyme Disease - Topic Overview
- Lyme Disease Helpline
- Lyme Disease Test
- Lymph Node Biopsy
- Lymph node removal (lymphadenectomy) for melanoma
- Lymphadenectomy for endometrial cancer
- Lymphadenopathy, Angioimmunoblastic with Dysproteinemia
- Lymphangiography (LAG)
- Lymphangioleiomyomatosis
- Lymphatic Malformations
- Lymphedema
- Lymphedema, Hereditary
- Lymphocytic Infiltrate of Jessner
- Lymphoma, non-Hodgkin's, adult: Treatment - Patient Information [NCI PDQ]
- Lymphoma, non-Hodgkin's, childhood: Treatment - Health Professional Information [NCI PDQ]
- Lymphoma, non-Hodgkin's, childhood: Treatment - Patient Information [NCI PDQ]
- Lynch Syndromes
- Lysosomal Storage Disorders
Medical Safety Resources
National Poison Control Hotline
A national toll-free number that reaches a poison control center from anywhere in the United States, anytime.
- If you suspect poisoning, call: 800-222-1222
- If the victim has collapsed or is having trouble breathing, call: 911
- Learn more at the National Poison Control website.
U.S. Food and Drug Administration
A regulatory agency that protects consumers by ensuring the safety and effectiveness of foods, drugs, and other products.
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