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  1. Lab Test Results: Units of Measurement
  2. Lab Tests for Fibromyalgia
  3. labetalol (oral/injection) - Medication
  4. Labor and Delivery
  5. Labor Induction and Augmentation
  6. Labyrinthitis
  7. Lac-Dose - Medication
  8. Lac-Hydrin - Medication
  9. Laclotion - Medication
  10. lacosamide (oral/injection) - Medication
  11. Lacri-Lube S.O.P. - Medication
  12. Lacrisert - Medication
  13. Lactaid - Medication
  14. lactase - Medication
  15. Lactic Acid Dehydrogenase (LDH) Test - Medical Test
  16. Lactic Acid Test - Medical Test
  17. Lactinex - Medication
  18. lactobacillus acidophilus - Medication
  19. lactobacillus acidophilus and bulgaricus - Medication
  20. lactobacillus rhamnosus GG - Medication
  21. Lactose Intolerance
  22. Lactrase - Medication
  23. lactulose (oral) - Medication
  24. Laetrile/Amygdalin (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  25. Laetrile/Amygdalin (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  26. Lagevrio - Medication
  27. LaMICtal - Medication
  28. LaMICtal ODT - Medication
  29. LaMICtal XR - Medication
  30. LamISIL - Medication
  31. LamISIL AT - Medication
  32. LamISIL Defense - Medication
  33. lamivudine - Medication
  34. lamivudine and tenofovir - Medication
  35. lamivudine and zidovudine - Medication
  36. lamotrigine - Medication
  37. Lampit - Medication
  38. Lanacane - Medication
  39. lanadelumab - Medication
  40. Langerhans Cell Histiocytosis Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  41. Langerhans Cell Histiocytosis Treatment (PDQ®): Treatment - Patient Information [NCI]
  42. Language Development Between 12 and 24 Months of Age
  43. Language Development From Age 6 to 10 Years
  44. Language Development in Newborns
  45. lanolin topical - Medication
  46. Lanolor Cream - Medication
  47. Lan-O-Soothe - Medication
  48. Lanoxin - Medication
  49. lanreotide - Medication
  50. Lansinoh for Breast Feeding Mothers - Medication
  51. lansoprazole - Medication
  52. lanthanum carbonate - Medication
  53. Lantus - Medication
  54. Lantus Solostar Pen - Medication
  55. Laparoscopic Gallbladder Removal Surgery for Gallstones
  56. Laparoscopic Gastric Banding (video)
  57. Laparoscopic Gastric Banding: Returning Home (video)
  58. Laparoscopic Inguinal Hernia Repair
  59. Laparoscopic Ovarian Drilling (Ovarian Diathermy) for PCOS
  60. Laparoscopic Surgery
  61. Laparoscopic Surgery for Endometriosis
  62. Laparoscopic Tubal Ligation
  63. Laparoscopy - Medical Test
  64. Laparoscopy (video)
  65. Laparoscopy in Children (video)
  66. lapatinib - Medication
  67. Lariam - Medication
  68. laronidase - Medication
  69. larotrectinib - Medication
  70. Laryngeal Cancer Treatment (Adult) (PDQ®): Treatment - Health Professional Information [NCI]
  71. Laryngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  72. Laryngitis
  73. Laryngoscopy - Medical Test
  74. Laser In-Situ Keratomileusis (LASIK) for Farsightedness
  75. Laser Iridotomy for Glaucoma
  76. Laser Photocoagulation and Cryopexy for Retinal Tears
  77. Laser Photocoagulation for Age-Related Macular Degeneration
  78. Laser Photocoagulation for Diabetic Retinopathy
  79. Laser Resurfacing
  80. Laser Surgery for Genital Warts
  81. Laser Surgery for Skin Cancer
  82. Laser Surgery for Warts
  83. Laser Trabeculoplasty for Glaucoma
  84. Laser Treatment for Varicose Veins
  85. LASIK (Laser In-Situ Keratomileusis) for Nearsightedness
  86. lasmiditan - Medication
  87. Last Days of Life (PDQ®): Supportive care - Health Professional Information [NCI]
  88. Last Days of Life (PDQ®): Supportive care - Patient Information [NCI]
  89. Lastacaft - Medication
  90. latanoprost and netarsudil ophthalmic - Medication
  91. latanoprost ophthalmic - Medication
  92. latanoprostene bunod ophthalmic - Medication
  93. Late Effects of Treatment for Childhood Cancer (PDQ®): Treatment - Health Professional Information [NCI]
  94. Late Effects of Treatment for Childhood Cancer (PDQ®): Treatment - Patient Information [NCI]
  95. Lateral Collateral Ligament (LCL) Injury
  96. Latisse - Medication
  97. Latuda - Medication
  98. laureth-9 (polidocanol) - Medication
  99. Lavacol - Medication
  100. lavender - Medication
  101. Laxatives
  102. Laxmar - Medication
  103. Lazanda - Medication
  104. Lazer Creme (obsolete) - Medication
  1. Lead (Pb) Test - Medical Test
  2. Lead Poisoning
  3. Lead Poisoning Screening
  4. Leader Allergy Relief D-24 - Medication
  5. Leader Lice Solution - Medication
  6. Leader Nicotine Polacrilex - Medication
  7. Leadless Pacemaker
  8. Learning About Anesthesia for Adults (video)
  9. Learning About Anesthesia for Your Child (video)
  10. Learning About Blood Tests for Children (video)
  11. Learning About Circumcision (video)
  12. Learning About General Anesthesia (video)
  13. Learning About Glucagon (video)
  14. Learning About Insulin Pens (video)
  15. Learning About Peripheral Nerve Blocks and I.V. Regional Anesthesia (video)
  16. Learning About Risk for Heart Attack and Stroke (video)
  17. Learning About Sedation for Adults (video)
  18. Learning About Sedation for Your Child (video)
  19. Learning About Spinal and Epidural Regional Anesthesia (video)
  20. Learning About the NICU (video)
  21. Learning About Your Blood Test (video)
  22. Learning About Your Child's Bronchoscopy (video)
  23. Learning About Your Child's CT Scan (video)
  24. Learning About Your Child's Laryngoscopy (video)
  25. Learning About Your Child's MRI Test (video)
  26. Learning About Your Child's Voiding Cystourethrogram (VCUG) Test (video)
  27. Learning About Your Child's X-Ray Test (video)
  28. Learning About Your CT Scan (video)
  29. Learning About Your MRI Test (video)
  30. Learning About Your X-Ray Test (video)
  31. Learning Disabilities
  32. Learning to Say No
  33. lecanemab (injection) - Medication
  34. lecithin - Medication
  35. Lecithin-Softgels - Medication
  36. ledipasvir and sofosbuvir - Medication
  37. lefamulin (oral/injection) - Medication
  38. leflunomide - Medication
  39. Left Atrial Appendage Closure: Before Your Procedure (video)
  40. Left Atrial Appendage Closure: Returning Home (video)
  41. Left Ventricular Hypertrophy (LVH)
  42. Leg Amputation
  43. Leg Aneurysm
  44. Leg Cramps During Pregnancy
  45. Leg Injuries
  46. Leg Problems, Noninjury
  47. Legatrin PM - Medication
  48. Legionnaires' Disease and Pontiac Fever
  49. lemborexant - Medication
  50. Lemtrada - Medication
  51. lenacapavir (oral/injection) - Medication
  52. lenalidomide - Medication
  53. Lenalidomide - Medication
  54. Lennox-Gastaut Syndrome
  55. lenvatinib - Medication
  56. Lenvima - Medication
  57. Leqembi - Medication
  58. Leqvio - Medication
  59. Leriche's Syndrome
  60. Lescol - Medication
  61. Lescol XL - Medication
  62. Letairis - Medication
  63. letermovir (oral/injection) - Medication
  64. letrozole - Medication
  65. letrozole and ribociclib - Medication
  66. Letting It Go: Getting Past Negative Emotions
  67. leucovorin (injection) - Medication
  68. leucovorin (oral) - Medication
  69. Leukemia
  70. Leukeran - Medication
  71. Leukine - Medication
  72. leuprolide - Medication
  73. Leustatin - Medication
  74. levalbuterol inhalation - Medication
  75. levamlodipine - Medication
  76. Levaquin - Medication
  77. Levaquin - Medication
  78. Levbid - Medication
  79. Levels of Evidence for Adult and Pediatric Cancer Treatment Studies (PDQ®): Treatment - Health Professional Information [NCI]
  80. Levels of Evidence for Cancer Genetics Studies (PDQ®): Genetics - Health Professional Information [NCI]
  81. Levels of Evidence for Cancer Screening and Prevention Studies (PDQ®): Screening - Health Professional Information [NCI]
  82. Levels of Evidence for Human Studies of Integrative, Alternative, and Complementary Therapies (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  83. Levels of Evidence for Supportive and Palliative Care Studies (PDQ®): Supportive care - Health Professional Information [NCI]
  84. Levemir - Medication
  85. Levemir FlexTouch - Medication
  86. levetiracetam (oral/injection) - Medication
  87. Levitra - Medication
  88. Levlen - Medication
  89. levobunolol ophthalmic - Medication
  90. levocarnitine (oral) - Medication
  91. levocetirizine - Medication
  92. levodopa inhalation - Medication
  93. levofloxacin (injection) - Medication
  94. levofloxacin ophthalmic - Medication
  95. levofloxacin (oral) - Medication
  96. levoketoconazole - Medication
  97. levoleucovorin - Medication
  98. levomilnacipran - Medication
  99. levonorgestrel emergency contraceptive - Medication
  100. levonorgestrel intrauterine system - Medication
  101. Levonorgestrel (LNg) IUD
  102. Levophed - Medication
  103. levorphanol (oral) - Medication
  104. Levothyroxine
  105. levothyroxine (oral/injection) - Medication
  106. Levsin - Medication
  107. Levulan Kerastick - Medication
  108. Lexapro - Medication
  109. Lexette - Medication
  110. Lexiscan - Medication
  111. Lexiva - Medication
  1. Lialda - Medication
  2. Librax - Medication
  3. Librium - Medication
  4. Libtayo - Medication
  5. Lice Bedding Spray - Medication
  6. LidaMantle - Medication
  7. lidocaine and prilocaine topical - Medication
  8. lidocaine and tetracaine topical - Medication
  9. lidocaine injection - Medication
  10. lidocaine topical - Medication
  11. lidocaine viscous - Medication
  12. Lidocaine Viscous - Medication
  13. Lidoderm - Medication
  14. LidoPro - Medication
  15. LidoRx - Medication
  16. LidoRxKit - Medication
  17. Life's DHA Adult - Medication
  18. Lifestyle Changes That May Help Prevent Cancer
  19. lifitegrast ophthalmic - Medication
  20. Light Therapy
  21. Light to Heavy Vaginal Bleeding
  22. Liletta - Medication
  23. Lillow - Medication
  24. Limbrel - Medication
  25. linaclotide - Medication
  26. linagliptin - Medication
  27. linagliptin and metformin - Medication
  28. Lincocin - Medication
  29. lincomycin - Medication
  30. lindane topical - Medication
  31. Linda's Story: Getting Active When You Have Prediabetes
  32. Linda's Story: Quitting Smoking Lowers My Risk
  33. linezolid (oral/injection) - Medication
  34. Linzess - Medication
  35. liothyronine - Medication
  36. Lip and Oral Cavity Cancer Treatment (Adult) (PDQ®): Treatment - Health Professional Information [NCI]
  37. Lip and Oral Cavity Cancer Treatment (Adult) (PDQ®): Treatment - Patient Information [NCI]
  38. Lipase Blood Test - Medical Test
  39. Lipofen - Medication
  40. Lipoma
  41. Liposuction
  42. LiQ-10 - Medication
  43. LiQsorb - Medication
  44. Liquibid-PD - Medication
  45. Liquid PedvaxHIB - Medication
  46. Liquimat Light - Medication
  47. Liquimat Medium - Medication
  48. Liquitears - Medication
  49. liraglutide - Medication
  50. lisdexamfetamine - Medication
  51. lisinopril - Medication
  52. lisocabtagene maraleucel - Medication
  53. Listening to Your Kids
  54. Listeriosis
  55. lithium - Medication
  56. Lithobid - Medication
  57. Lithostat - Medication
  58. Little Leaguer's Elbow (Medial Apophysitis)
  59. Little Noses - Medication
  60. Little Noses Decongestant - Medication
  61. Little Tummys - Medication
  62. Livalo - Medication
  63. Live Zoster (Shingles) Vaccine: What You Need to Know
  64. Liver and Spleen Scan - Medical Test
  65. Liver Function Panel
  66. Liver Function Tests - Medical Test
  67. Liver (Hepatocellular) Cancer Prevention : Prevention - Patient Information [NCI]
  68. Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
  69. Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
  70. Liver (Hepatocellular) Cancer Screening: Screening - Patient Information [NCI]
  71. Liver Resection
  72. Liver Transplant
  73. Liver Transplant in Children
  74. Living Organ Donation
  75. Living Will
  76. Living With a Spinal Cord Injury
  77. Living With an Ostomy
  78. Living With Chronic Pain (video)
  79. Living With More Than One Health Problem
  80. Livmarli - Medication
  81. Livtencity - Medication
  82. lixisenatide - Medication
  1. Local Anesthesia
  2. Local Anesthesia for Childbirth
  3. Locoid - Medication
  4. Lodine - Medication
  5. Lodosyn - Medication
  6. lodoxamide ophthalmic - Medication
  7. Lodrane D - Medication
  8. lofexidine - Medication
  9. Log Roll Method for Safe Movement
  10. LoHist-D - Medication
  11. LoKara - Medication
  12. Lokelma - Medication
  13. Lomaira - Medication
  14. lomitapide - Medication
  15. Lomotil - Medication
  16. lomustine - Medication
  17. lonafarnib - Medication
  18. lonapegsomatropin - Medication
  19. loncastuximab tesirine - Medication
  20. Loneliness and Your Health
  21. Long COVID
  22. Long-Acting Bronchodilators for Your Child (video)
  23. Long-Acting Injectable Antipsychotic Medicines
  24. Long-Term Care Choices
  25. Lonhala Magnair Starter Kit - Medication
  26. Loniten - Medication
  27. Lonsurf - Medication
  28. Loop Electrosurgical Excision Procedure (LEEP) for Abnormal Cervical Cell Changes
  29. Loop Electrosurgical Excision Procedure (LEEP) for Genital Warts
  30. loperamide - Medication
  31. Lopid - Medication
  32. lopinavir and ritonavir - Medication
  33. Lopressor - Medication
  34. Loprox - Medication
  35. Loralie's Story: It's Never Too Late
  36. loratadine - Medication
  37. loratadine and pseudoephedrine - Medication
  38. Loratadine-D 12 Hour - Medication
  39. Loratadine-D 24 Hour - Medication
  40. lorazepam (injection) - Medication
  41. lorazepam (oral) - Medication
  42. Lorbrena - Medication
  43. Lorcet - Medication
  44. lorlatinib - Medication
  45. Lorna's Story: There's No Fast Cure
  46. Lortuss EX - Medication
  47. Loryna - Medication
  48. losartan - Medication
  49. LoSeasonique - Medication
  50. Lotemax - Medication
  51. Lotemax SM - Medication
  52. Lotensin HCT - Medication
  53. loteprednol and tobramycin (ophthalmic) - Medication
  54. loteprednol (ophthalmic) - Medication
  55. Lotrel - Medication
  56. Lotrimin AF - Medication
  57. Lotrimin AF Cream - Medication
  58. Lotrimin Jock Itch Powder - Medication
  59. Lotrisone - Medication
  60. Lotronex - Medication
  61. lovastatin - Medication
  62. Lovaza - Medication
  63. Lovenox - Medication
  64. Low Amniotic Fluid
  65. Low Back Pain
  66. Low Back Pain and Sex
  67. Low Back Pain: Easing Back Into Your Daily Activities
  68. Low Back Pain: Exercises to Reduce Pain
  69. Low Back Pain: Keep Moving (video)
  70. Low Back Pain: Keeping It From Coming Back (video)
  71. Low Back Pain: Should I Have an MRI?
  72. Low Back Pain: Should I Have Spinal Manipulation?
  73. Low Back Pain: Should I Try Epidural Steroid Shots?
  74. Low Blood Pressure (Hypotension)
  75. Low Blood Sugar Level Record
  76. Low Bone Density
  77. Low Testosterone
  78. Lowering Your Health Care Costs
  79. Low-Lying Placenta Versus Placenta Previa
  80. Low-Ogestrel - Medication
  81. Low-Potassium Foods
  82. Low-Salt Diets: Eating Out
  83. Low-Vision Accommodations in Your Home
  84. loxapine (oral) - Medication
  85. Loxitane - Medication
  1. lubiprostone - Medication
  2. Lubricant Eye Drops - Medication
  3. Lubriderm - Medication
  4. Lucemyra - Medication
  5. Lucentis - Medication
  6. Luden's Honey Lemon Throat Drops - Medication
  7. Ludent - Medication
  8. luliconazole topical - Medication
  9. Lumakras - Medication
  10. lumasiran - Medication
  11. Lumason - Medication
  12. lumateperone - Medication
  13. Lumbar Discectomy: Before Your Surgery (video)
  14. Lumbar Discectomy: Returning Home (video)
  15. Lumbar Herniated Disc
  16. Lumbar Herniated Disc: Should I Have Surgery?
  17. Lumbar Spinal Fusion (Arthrodesis)
  18. Lumbar Spinal Stenosis
  19. Lumbar Spinal Stenosis: Should I Have Surgery?
  20. Lumbar Spondylosis
  21. Lumify - Medication
  22. Lumigan - Medication
  23. Lumizyme - Medication
  24. Lumoxiti - Medication
  25. Lumpectomy (video)
  26. Lumpectomy: Returning Home (video)
  27. Lunesta - Medication
  28. Lung Biopsy - Medical Test
  29. Lung Cancer
  30. Lung Cancer and Other Lung Problems From Smoking
  31. Lung Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
  32. Lung Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
  33. Lung Cancer Screening: Low-Dose Spiral CT Scan - Medical Test
  34. Lung Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
  35. Lung Cancer Screening (PDQ®): Screening - Patient Information [NCI]
  36. Lung Cancer: Should I Have Screening?
  37. Lung Function in COPD
  38. Lung Function Tests - Medical Test
  39. Lung Problems: Breathing Exercises (video)
  40. Lung Problems: Learning to Breathe Easier
  41. Lung Problems: Ways to Clear Mucus (video)
  42. Lung Scan - Medical Test
  43. Lung Surgery: Before Your Surgery (video)
  44. Lung Surgery for Lung Cancer
  45. Lung Surgery: Returning Home (video)
  46. Lung Transplant
  47. Lung Transplant for Cystic Fibrosis
  48. Lungs and Airways
  49. Lupkynis - Medication
  50. Lupron Depot - Medication
  51. Lupus and Antiphospholipid Antibody Syndrome
  52. Lupus and Pregnancy
  53. Lupus: Criteria for Diagnosis
  54. Lupus: Healthy Eating
  55. Lupus (Systemic Lupus Erythematosus)
  56. lurasidone - Medication
  57. lurbinectedin - Medication
  58. luspatercept - Medication
  59. Lustra-Ultra - Medication
  60. lusutrombopag - Medication
  61. Lutathera - Medication
  62. Luteinizing Hormone (LH) Test - Medical Test
  63. lutetium Lu 177 dotatate - Medication
  64. Luxiq - Medication
  65. Luxturna - Medication
  66. Luzu - Medication