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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. Biliary Cirrhosis, Primary
  5. Biliopancreatic Diversion and Biliopancreatic Diversion With Duodenal Switch
  6. Binge Eating Disorder
  7. Binge-Purge Disorder
  8. Biofeedback
  9. Bioidentical Hormones
  10. Biological Clock, Sleep and Your
  11. Bioterrorism
  12. Biotherapy for cancer
  13. Bipolar Disorder
  14. Bipolar Disorder in Children and Teens
  15. Bipolar Disorder in Children: Helping Your Child Prevent Manic Episodes
  16. Bipolar Disorder in Children: Other Health Problems That May Occur
  17. Bipolar Disorder in Children: School Issues
  18. Bipolar Disorder: Helping Someone During a Manic Episode
  19. Bipolar Disorder: Hypomanic Episodes
  20. Bipolar Disorder: Manic Episodes
  21. Bipolar Disorder: Preventing Manic Episodes
  22. Bird Flu (Avian Influenza)
  23. Birth Control
  24. Birth Control for Teens
  25. Birth Control Hormones: The Implant
  26. Birth Control Hormones: The Mini-Pill
  27. Birth Control Hormones: The Patch
  28. Birth Control Hormones: The Pill
  29. Birth Control Hormones: The Ring
  30. Birth Control Hormones: The Shot
  31. Birth Control Pills: Missed or Skipped Periods
  32. Birth Control, Barrier Methods
  33. Birth Control, Intrauterine Device (IUD) for
  34. Birth Control, IUD (Intrauterine Device) for
  35. Birth Control, Tubal Implants
  36. Birth Control, Tubal Ligation
  37. Birth Control, Vasectomy
  38. Birth Control: How to Use a Diaphragm
  39. Birth Control: How to Use the Patch
  40. Birth Control: How to Use the Vaginal Ring
  41. Birth Control: Myths About Sex and Pregnancy
  42. Birth Control: Pros and Cons of Hormonal Methods
  43. Birth Defects Testing
  44. Birthmarks
  45. Bisphosphonate Treatment for Osteoporosis, Deciding About
  46. Bites and Stings: Flu-Like Symptoms
  47. Bites, Animal and Human
  48. Bites, Insect
  49. Bites, Snake and Lizard
  50. Biting
  51. 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. Bleeding from a Minor Head Wound
  19. Blepharitis
  20. Blepharitis (Eyelid Problems)
  21. Blindness: Living with poor eyesight
  22. Blister Care
  23. Blisters
  24. Blocked Eustachian Tubes
  25. Blocked Tear Ducts
  26. Blocked Tear Ducts: Balloon Dacryocystoplasty
  27. Blocked Tear Ducts: Causes in Adults
  28. Blocked Tear Ducts: Dacryocystorhinostomy
  29. Blocked Tear Ducts: Dye Disappearance Test
  30. Blocked Tear Ducts: Endoscopic and Laser Dacryocystorhinostomy
  31. Blocked Tear Ducts: Infracturing
  32. Blocked Tear Ducts: Intubation
  33. Blocked Tear Ducts: Probing Procedures
  34. Blocked Tear Ducts: Should My Baby Have a Probing Procedure?
  35. Blood and Body Fluid Precautions
  36. Blood and Lymph System
  37. Blood Banking Before Surgery, Deciding About
  38. Blood Clots in the Leg Veins
  39. Blood Glucose Monitoring at Home
  40. Blood Glucose Monitoring for Children with Diabetes
  41. Blood Glucose Monitoring when You Have Gestational Diabetes
  42. Blood Pressure Monitoring at Home
  43. Blood Pressure Numbers: When to Get Help
  44. Blood Pressure Screening
  45. Blood Tests for Preeclampsia
  46. Blood Thinners Other Than Warfarin: Taking Them Safely
  47. Blood Transfusion
  48. Blood Transfusion, Intrauterine Fetal, for Rh Disease
  49. Blood Transfusions for Sickle Cell Disease
  50. Blood Transfusions: Should I Bank Blood Before Surgery?
  51. Blood-Clotting Disorders


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