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