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  1. Bifocal Contact Lenses
  2. Bile Acid Synthesis Disorders
  3. Bile Duct Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  4. Bile Duct Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  5. Biliary Cirrhosis, Primary
  6. Biliopancreatic Diversion and Biliopancreatic Diversion With Duodenal Switch
  7. Binder Type Maxillonasal Dysplasia
  8. Binge Eating Disorder
  9. Binge-Purge Disorder
  10. Binswanger Disease
  11. Biofeedback
  12. Bioidentical Hormones
  13. Biological Clock, Sleep and Your
  14. Bioterrorism
  15. Biotherapy for cancer
  16. Biotinidase deficiency
  17. Bipolar Disorder
  18. Bipolar Disorder in Children and Teens
  19. Bipolar Disorder in Children: Helping Your Child Prevent Manic Episodes
  20. Bipolar Disorder in Children: Other Health Problems That May Occur
  21. Bipolar Disorder in Children: School Issues
  22. Bipolar Disorder: Helping Someone During a Manic Episode
  23. Bipolar Disorder: Hypomanic Episodes
  24. Bipolar Disorder: Manic Episodes
  25. Bipolar Disorder: Preventing Manic Episodes
  26. Bird Flu (Avian Influenza)
  27. Birt-Hogg-Dubé Syndrome
  28. Birth Control
  29. Birth Control for Teens
  30. Birth Control Hormones: The Implant
  31. Birth Control Hormones: The Mini-Pill
  32. Birth Control Hormones: The Patch
  33. Birth Control Hormones: The Pill
  34. Birth Control Hormones: The Ring
  35. Birth Control Hormones: The Shot
  36. Birth Control Pills: Missed or Skipped Periods
  37. Birth Control, Barrier Methods
  38. Birth Control, Intrauterine Device (IUD) for
  39. Birth Control, IUD (Intrauterine Device) for
  40. Birth Control, Tubal Implants
  41. Birth Control, Tubal Ligation
  42. Birth Control, Vasectomy
  43. Birth Control: How to Use a Diaphragm
  44. Birth Control: How to Use the Patch
  45. Birth Control: How to Use the Vaginal Ring
  46. Birth Control: Myths About Sex and Pregnancy
  47. Birth Control: Pros and Cons of Hormonal Methods
  48. Birth Defects Testing
  49. Birthmarks
  50. Bisphosphonate Treatment for Osteoporosis, Deciding About
  51. Bites and Stings: Flu-Like Symptoms
  52. Bites, Animal and Human
  53. Bites, Insect
  54. Bites, Snake and Lizard
  55. Biting
  56. 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 Exstrophy-Epispadias-Cloacal Exstrophy Complex
  13. Bladder Infections in Children
  14. Bladder Infections in Teens and Adults
  15. Bladder Pain Syndrome (Interstitial Cystitis)
  16. Bladder Prolapse Repair
  17. Bladder Removal (Cystectomy) for Bladder Cancer
  18. Blastomycosis
  19. Bleeding Between Periods
  20. Bleeding from a Minor Head Wound
  21. Blepharitis
  22. Blepharitis (Eyelid Problems)
  23. Blepharophimosis, Ptosis, Epicanthus Inversus Syndrome
  24. Blindness: Living with poor eyesight
  25. Blister Care
  26. Blisters
  27. Blocked Eustachian Tubes
  28. Blocked Tear Ducts
  29. Blocked Tear Ducts: Balloon Dacryocystoplasty
  30. Blocked Tear Ducts: Causes in Adults
  31. Blocked Tear Ducts: Dacryocystorhinostomy
  32. Blocked Tear Ducts: Dye Disappearance Test
  33. Blocked Tear Ducts: Endoscopic and Laser Dacryocystorhinostomy
  34. Blocked Tear Ducts: Infracturing
  35. Blocked Tear Ducts: Intubation
  36. Blocked Tear Ducts: Probing Procedures
  37. Blocked Tear Ducts: Should My Baby Have a Probing Procedure?
  38. Blood and Body Fluid Precautions
  39. Blood and Lymph System
  40. Blood Banking Before Surgery, Deciding About
  41. Blood Clots in the Leg Veins
  42. Blood Glucose Monitoring at Home
  43. Blood Glucose Monitoring for Children with Diabetes
  44. Blood Glucose Monitoring when You Have Gestational Diabetes
  45. Blood Pressure Monitoring at Home
  46. Blood Pressure Numbers: When to Get Help
  47. Blood Pressure Screening
  48. Blood Tests for Preeclampsia
  49. Blood Thinners Other Than Warfarin: Taking Them Safely
  50. Blood Transfusion
  51. Blood Transfusion, Intrauterine Fetal, for Rh Disease
  52. Blood Transfusions for Sickle Cell Disease
  53. Blood Transfusions: Should I Bank Blood Before Surgery?
  54. Blood-Clotting Disorders
  55. Bloom Syndrome
  56. Blue Diaper Syndrome
  57. Blue Rubber Bleb Nevus syndrome


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