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  1. In Vitro Fertilization (IVF)
  2. Incision Care After Surgery
  3. Incision of External Hemorrhoids
  4. Independent Living for People With Disabilities
  5. Indirect Coombs Test
  6. Indoor Tanning: Is It Safe?
  7. Induction Abortion
  8. Infant and Toddler Health
  9. Infant Crying
  10. Infant Formulas
  11. Infant Massage
  12. Infantile Spasms (West Syndrome)
  13. Infertility: Emotional and Social Concerns
  14. Infertility: Ethical and Legal Concerns
  15. Infertility: Factors That Affect Treatment Success
  16. Infertility: Problems With Fallopian Tubes
  17. Infertility: Problems With Ovulation
  18. Infertility: Problems With the Man's Reproductive System
  19. Infertility: Problems With the Uterus and Cervix
  20. Infertility: Questions to Ask About Assisted Reproductive Technology
  21. Infertility: Questions to Ask About Medicine or Hormone Treatment
  22. Infertility: Setting Limits on Testing
  23. Infertility: Setting Limits on Treatment
  24. Infertility: Should I Have Treatment?
  25. Infertility Tests
  26. Infertility: Thinking About Adoption
  27. Infertility Treatment for Women With PCOS
  28. Inflammatory Bowel Disease and Cancer Risk
  29. Inflammatory Breast Cancer
  30. Influenza (Seasonal Flu)
  31. Informal Caregivers in Cancer (PDQ®): Supportive care - Patient Information [NCI]
  32. Informal Caregivers in Cancer: Roles, Burden, and Support (PDQ®): Supportive care - Health Professional Information [NCI]
  33. Infrared Photocoagulation for Hemorrhoids
  34. Ingrown Toenail
  35. Inguinal Hernia
  36. Inguinal Hernia: Should I Have Surgery Now, or Should I Wait?
  37. Inguinal Hernia: Surgery in Adults
  38. Inhalant Use
  39. Inhaled Corticosteroids for Asthma
  40. Inhaled Quick-Relief Medicines for Asthma
  41. Injury to the Tailbone (Coccyx)
  42. Inpatient and Outpatient Treatment for Substance Use Disorder
  43. Insect Bites and Stings and Spider Bites
  44. Insect Repellents
  45. Insect Sting Allergies, Deciding about Allergy Shots
  46. Insect Stings: How to Remove the Stinger
  47. Insemination for Infertility
  48. Insemination Procedures
  49. Insomnia
  50. Insomnia: Improving Your Sleep
  51. Insomnia: Should I Take Sleeping Pills?
  52. Insulin Pump, Deciding About
  53. Insulin Resistance
  54. Insulin: Reusing Syringes and Lancets Safely
  55. Interactive Tools
  56. Intermittent Catheterization for Men
  57. Intermittent Catheterization for Women
  58. Intermittent Claudication
  59. Intra-Aortic Balloon Pump
  60. Intracytoplasmic Sperm Injection (ICSI)
  61. Intradiscal Electrothermal Therapy (IDET) for Low Back Pain
  62. Intraocular Lens (IOL) Implants
  63. Intraocular (Uveal) Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  64. Intraocular (Uveal) Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  65. Intraoperative Cholangiogram
  66. Intrauterine Device (IUD) for Birth Control
  67. Intrauterine Fetal Blood Transfusion
  68. Introducing Foods to Your Baby
  69. Intussusception