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  1. Added Sugars
  2. Addison's Disease
  3. Adenomyosis
  4. ADHD and Hyperactivity
  5. ADHD: Helping Your Child Get the Most From School
  6. ADHD: Helping Your Child Get Things Done
  7. ADHD: Impulsivity and Inattention
  8. ADHD in Adults: Behavioral Strategies
  9. ADHD Myths and Facts
  10. ADHD: Should My Child Take Medicine for ADHD?
  11. ADHD: Social Skills Training
  12. ADHD: Symptoms in Adults
  13. ADHD: Taking Care of Yourself When Your Child Has ADHD
  14. ADHD: Tests for Other Disorders
  15. Adjustable Gastric Banding Surgery
  16. Adjustment to Cancer: Anxiety and Distress (PDQ®): Supportive care - Health Professional Information [NCI]
  17. Adjustment to Cancer: Anxiety and Distress (PDQ®): Supportive care - Patient Information [NCI]
  18. Adolescent Sensory and Motor Development
  19. Adrenocortical Carcinoma Treatment (Adult) (PDQ®): Treatment - Health Professional Information [NCI]
  20. Adrenocortical Carcinoma Treatment (Adult) (PDQ®): Treatment - Patient Information [NCI]
  21. Adult Acute Lymphoblastic Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  22. Adult Acute Lymphoblastic Leukemia Treatment (PDQ®): Treatment - Patient Information [NCI]
  23. Adult Acute Myeloid Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  24. Adult Acute Myeloid Leukemia Treatment (PDQ®): Treatment - Patient Information [NCI]
  25. Adult Central Nervous System Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  26. Adult Central Nervous System Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  27. Adult Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  28. Adult Hodgkin Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  29. Adult Immunization Schedule
  30. Adult Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  31. Adult Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  32. Adult Primary Liver Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  33. Adult Primary Liver Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  34. Adult Soft Tissue Sarcoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  35. Adult Soft Tissue Sarcoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  36. Advance Care Planning
  37. Advance Care Planning: Should I Have Artificial Hydration and Nutrition?
  38. Advance Care Planning: Should I Receive CPR and Life Support?
  39. Advance Care Planning: Should I Stop Kidney Dialysis?
  40. Advance Care Planning: Should I Stop Treatment That Prolongs My Life?
  41. Advance Directive: What to Include
  1. Anabolic Steroids
  2. Anal Cancer
  3. Anal Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
  4. Anal Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
  5. Anal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  6. Anal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  7. Anal Fissure
  8. Anal Fistulas and Crohn's Disease
  9. Androgenetic Alopecia (Hair Loss, Inherited), Deciding about Treatment
  10. Andy's Story: Finding Your Own Routine When You Have Diabetes
  11. Anemia
  12. Anemia During Pregnancy
  13. Anemia of Chronic Disease (ACD)
  14. Anemia of Chronic Kidney Disease
  15. Anesthesia
  16. Anesthesia: Health Risks
  17. Anger, Hostility, and Violent Behavior
  18. Angina
  19. Angiogram for Coronary Artery Disease, Deciding About
  20. Angioplasty for Coronary Artery Disease
  21. Angiotensin II receptor blockers (ARBs)
  22. Angiotensin-converting enzyme (ACE) inhibitors
  23. Animal and Human Bites
  24. Animal and Human Bites: When Stitches Are Needed
  25. Ankle Sprain
  26. Ankylosing Spondylitis
  27. Anorexia: Learning New Eating Behaviors
  28. Anorexia: Learning to Trust Others
  29. Anorexia Nervosa
  30. Anosmia
  31. Anterior Cruciate Ligament (ACL) Injuries
  32. Anterior Cruciate Ligament (ACL) Injury, Deciding About Surgery
  33. Anterior Cruciate Ligament (ACL) Surgery
  34. Anthrax
  35. Antibiotic Sensitivity Test
  36. Antibiotics
  37. Antibiotics for an Ear Infection, Deciding About
  38. Antibody Test for COVID-19
  39. Antibody Tests for Lupus
  40. Anticoagulants
  41. Antidepressant Withdrawal
  42. Antidepressants
  43. Antidepressants; Should I Take Them when I am Pregnant?
  44. Antihistamines
  45. Antihistamines for Morning Sickness
  46. Antihypertensive Medications, Deciding About
  47. Antineoplastons (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  48. Antineoplastons (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  49. Antioxidants
  50. Antiphospholipid Syndrome and Pregnancy
  51. Antiplatelets
  52. Antipsychotic medicines
  53. Antiretroviral medicines for HIV
  54. Antithyroid Medication or Radioactive Iodine for Hyperthyroidism, Deciding About
  55. Antiviral Medicines for Flu, Deciding About Taking
  56. Antiviral Therapy for Chronic Hepatitis B, Deciding About
  57. Anxiety
  58. Anxiety: Stop Negative Thoughts