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  1. Bifocal Contact Lenses
  2. Bile Duct Cancer (Cholangiocarcinoma) Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  3. Bile Duct Cancer (Cholangiocarcinoma) Treatment (PDQ®): Treatment - Patient Information [NCI]
  4. Biliopancreatic Diversion and Biliopancreatic Diversion With Duodenal Switch
  5. Binge Eating Disorder
  6. Binge-Purge Disorder
  7. Biofeedback
  8. Bioidentical Hormones
  9. Biotherapy for cancer
  10. Bipolar Disorder
  11. Bipolar Disorder in Children and Teens
  12. Bipolar Disorder in Children: Helping Your Child Prevent Manic Episodes
  13. Bipolar Disorder in Children: Other Health Problems That May Occur
  14. Bipolar Disorder in Children: School Issues
  15. Bipolar Disorder: Helping Someone During a Manic Episode
  16. Bipolar Disorder: Hypomanic Episodes
  17. Bipolar Disorder: Manic Episodes
  18. Bipolar Disorder: Preventing Manic Episodes
  19. Birth Control
  20. Birth Control for Teens
  21. Birth Control Hormones: The Implant
  22. Birth Control Hormones: The Mini-Pill
  23. Birth Control Hormones: The Patch
  24. Birth Control Hormones: The Pill
  25. Birth Control Hormones: The Ring
  26. Birth Control Hormones: The Shot
  27. Birth Control Pills: Missed or Skipped Periods
  28. Birth Control, Barrier Methods
  29. Birth Control, Intrauterine Device (IUD) for
  30. Birth Control, IUD (Intrauterine Device) for
  31. Birth Control, Tubal Implants
  32. Birth Control, Tubal Ligation
  33. Birth Control, Vasectomy
  34. Birth Control: How to Use a Diaphragm
  35. Birth Control: How to Use the Patch
  36. Birth Control: How to Use the Vaginal Ring
  37. Birth Control: Myths About Sex and Pregnancy
  38. Birth Control: Pros and Cons of Hormonal Methods
  39. Birth Defects Testing
  40. Birthmarks
  41. Bisphosphonate Treatment for Osteoporosis, Deciding About
  42. Bites and Stings: Flu-Like Symptoms
  43. Bites, Animal and Human
  44. Bites, Insect
  45. Bites, Snake and Lizard
  46. Biting
  47. Biting as a Behavior Problem


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  1. Black Cohosh for Menopause Symptoms
  2. Black Lung Disease
  3. Black Widow Spider Bite
  4. Blackouts Caused by Alcohol or Drugs
  5. Bladder and Other Urothelial Cancers Screening (PDQ®): Screening - Health Professional Information [NCI]
  6. Bladder and Other Urothelial Cancers Screening (PDQ®): Screening - Patient Information [NCI]
  7. Bladder Cancer
  8. Bladder Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  9. Bladder Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  10. Bladder Cancer, Bladder Removal (Cystectomy) for
  11. Bladder Cancer, Transurethral Resuction for
  12. Bladder Infections in Children
  13. Bladder Infections in Teens and Adults
  14. Bladder Pain Syndrome (Interstitial Cystitis)
  15. Bladder Prolapse Repair
  16. Bladder Removal (Cystectomy) for Bladder Cancer
  17. Bleeding Between Periods
  18. Blepharitis
  19. Blister Care
  20. Blisters
  21. Blocked Eustachian Tubes
  22. Blocked Tear Ducts
  23. Blocked Tear Ducts: Balloon Dacryocystoplasty
  24. Blocked Tear Ducts: Causes in Adults
  25. Blocked Tear Ducts: Dacryocystorhinostomy
  26. Blocked Tear Ducts: Dye Disappearance Test
  27. Blocked Tear Ducts: Endoscopic and Laser Dacryocystorhinostomy
  28. Blocked Tear Ducts: Infracturing
  29. Blocked Tear Ducts: Intubation
  30. Blocked Tear Ducts: Probing Procedures
  31. Blocked Tear Ducts: Should My Baby Have a Probing Procedure?
  32. Blood and Body Fluid Precautions
  33. Blood and Lymph System
  34. Blood Banking Before Surgery, Deciding About
  35. Blood Clots in the Leg Veins
  36. Blood Pressure Monitoring at Home
  37. Blood Pressure Numbers: When to Get Help
  38. Blood Pressure Screening
  39. Blood Tests for Preeclampsia
  40. Blood Thinners Other Than Warfarin: Taking Them Safely
  41. Blood Transfusion
  42. Blood Transfusion, Intrauterine Fetal, for Rh Disease
  43. Blood Transfusions for Sickle Cell Disease
  44. Blood Transfusions: Should I Bank Blood Before Surgery?
  45. Blood-Clotting Disorders


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  1. Brace (Orthotic) Treatment for Scoliosis
  2. Bradycardia (Slow Heart Rate)
  3. Bradycardia, Pacemaker for
  4. Brain and Nervous System
  5. Brain Aneurysm
  6. Brain Aneurysm: Endovascular Embolization
  7. Brain Attack
  8. Brandt-Daroff Exercise for Vertigo
  9. Braxton Hicks Contractions
  10. BRCA Gene Test, Should I Have a
  11. Breast Cancer
  12. Breast Cancer in Men (Male Breast Cancer)
  13. Breast Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
  14. Breast Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
  15. Breast Cancer Risk: Should I Have a BRCA Gene Test?
  16. Breast Cancer Screening
  17. Breast Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
  18. Breast Cancer Screening (PDQ®): Screening - Patient Information [NCI]
  19. Breast Cancer Screening and Dense Breasts: What Are My Options?
  20. Breast Cancer Screening: When Should I Start Having Mammograms?
  21. Breast Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  22. Breast Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  23. Breast Cancer Treatment and Pregnancy (PDQ®): Treatment - Patient Information [NCI]
  24. Breast Cancer Treatment During Pregnancy (PDQ®): Treatment - Health Professional Information [NCI]
  25. Breast Cancer Types
  26. Breast Cancer, Lumpectomy for
  27. Breast Cancer, Mastectomy for
  28. Breast Cancer, Metastatic or Recurrent
  29. Breast Cancer, Partial Mastectomy for
  30. Breast Cancer: Lymph Node Surgery for Staging Cancer
  31. Breast Cancer: Should I Have Breast Reconstruction After a Mastectomy?
  32. Breast Cancer: Should I Have Breast-Conserving Surgery or a Mastectomy for Early-Stage Cancer?
  33. Breast Cancer: Should I Have Chemotherapy for Early-Stage Breast Cancer?
  34. Breast Cancer: What Should I Do if I'm at High Risk?
  35. Breast Changes During Pregnancy
  36. Breast Engorgement
  37. Breast Enlargement
  38. Breast Implant Surgery for Breast Reconstruction
  39. Breast implants
  40. Breast Infection (Mastitis)
  41. Breast Lumps
  42. Breast Pain (Mastalgia)
  43. Breast Problems
  44. Breast Reconstruction Surgery after Mastectomy, Deciding about
  45. Breast Reconstruction, Breast Implants for
  46. Breast Reconstruction, Tissue Flap Surgery
  47. Breast Reduction
  48. Breast Self-Examination
  49. Breast-Conserving Surgery (Lumpectomy or Partial Mastectomy) for Breast Cancer
  50. Breastfeeding
  51. Breastfeeding a Sick Baby
  52. Breastfeeding After a C-Section
  53. Breastfeeding After Breast Surgery
  54. Breastfeeding and Your Milk Supply
  55. Breastfeeding as Birth Control
  56. Breastfeeding at Work
  57. Breastfeeding During Pregnancy
  58. Breastfeeding Multiple Infants
  59. Breastfeeding Positions
  60. Breastfeeding When You Have Diabetes
  61. Breastfeeding With Inverted Nipples
  62. Breastfeeding Your Newborn and an Older Child
  63. Breastfeeding: Avoiding Toxic Substances
  64. Breastfeeding: Baby's Poor Weight Gain
  65. Breastfeeding: Choosing a Breast Pump
  66. Breastfeeding: Exercise and Weight Loss
  67. Breastfeeding: Hindmilk
  68. Breastfeeding: How to Use a Breast Pump
  69. Breastfeeding: Planning Ahead
  70. Breastfeeding: Should I Breastfeed My Baby?
  71. Breastfeeding: Sore Nipples
  72. Breastfeeding: Tobacco, Alcohol, and Drugs
  73. Breastfeeding: Using Medicines Safely
  74. Breastfeeding: Waking Your Baby
  75. Breastfeeding: Weaning a Toddler
  76. Breastfeeding: When Baby Doesn't Want to Stop
  77. Breath-Holding Spells
  78. Breath-Holding Spells: Helping Your Child Avoid Injury
  79. Breath-Holding Spells: Keeping a Record
  80. Breathing Exercises: Using a Manual Incentive Spirometer
  81. Breathing Problems: Using a Dry Powder Inhaler
  82. Breathing Problems: Using a Metered-Dose Inhaler
  83. Breathing Smoke or Fumes
  84. Breathing Techniques for Childbirth
  85. Breech Position and Breech Birth
  86. Breech Position, External Cephalic Version for
  87. Broken Blisters: Home Treatment
  88. Broken Collarbone (Clavicle)
  89. Broken Nose (Nasal Fracture)
  90. Broken Toe
  91. Broken Tooth or Dental Appliance: First Aid
  92. Bronchiectasis
  93. Bronchiolitis
  94. Bronchitis: Should I Take Antibiotics?
  95. Brown Recluse Spider Bite
  96. Bruises and Blood Spots Under the Skin
  97. Brushing and Flossing a Child's Teeth
  98. Bruxism and Temporomandibular Disorders