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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 Central Nervous System Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  24. Adult Central Nervous System Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
  25. Adult Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  26. Adult Hodgkin Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  27. Adult Immunization Schedule
  28. Adult Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  29. Adult Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  30. Adult Primary Liver Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  31. Adult Primary Liver Cancer Treatment: Treatment - Patient Information [NCI]
  32. Advance Care Planning
  33. Advance Care Planning for Your Child
  34. Advance Care Planning: Should I Have Artificial Hydration and Nutrition?
  35. Advance Care Planning: Should I Receive CPR and Life Support?
  36. Advance Care Planning: Should I Stop Kidney Dialysis?
  37. Advance Care Planning: Should I Stop Treatment That Prolongs My Life?
  38. 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. Andy's Story: Finding Your Own Routine When You Have Diabetes
  10. Anemia
  11. Anemia During Pregnancy
  12. Anemia of Chronic Disease (ACD)
  13. Anemia of Chronic Kidney Disease
  14. Anesthesia
  15. Anesthesia: Health Risks
  16. Anger, Hostility, and Violent Behavior
  17. Angina
  18. Angioplasty for Heart Attack and Unstable Angina
  19. Angiotensin II Receptor Blockers (ARBs)
  20. Angiotensin-Converting Enzyme (ACE) Inhibitors
  21. Animal and Human Bites
  22. Animal and Human Bites: When Stitches Are Needed
  23. Ankle Sprain
  24. Ankylosing Spondylitis
  25. Anorexia: Learning New Eating Behaviors
  26. Anorexia: Learning to Trust Others
  27. Anorexia Nervosa
  28. Anosmia
  29. Anterior Cruciate Ligament (ACL) Injuries
  30. Anterior Cruciate Ligament (ACL) Surgery
  31. Anthrax
  32. Antibiotics
  33. Antibody Test for COVID-19
  34. Anticoagulants
  35. Antidepressant Withdrawal
  36. Antidepressants
  37. Antihistamines
  38. Antihistamines for Morning Sickness
  39. Antineoplastons (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  40. Antineoplastons (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
  41. Antioxidants
  42. Antiphospholipid Syndrome and Pregnancy
  43. Antiplatelets
  44. Antipsychotic Medicines
  45. Antiretroviral Medicines for HIV
  46. Anxiety
  47. Anxiety: Stop Negative Thoughts