Unit 1 Lead Poisoning and Tooth Decay 1
Unit 2 Dioxin and Food 8
Unit 3 Tamiflu Approved to Treat Influenza 16
Unit 4 Drinking Coffee and Gallstone Disease 23
Unit 5 New Rice with Vitamin A 30
Unit 6 Fighting Obesity and Diabetes in Kids 38
Unit 7 AIDS Vaccine Initiative 45
Unit 8 Magnetic Cancer Treatment 53
Unit 9 Acupuncture's Expanding Role 62
Unit 10 Tuberculosis Infection Clue 71
Unit 11 Weather and Headaches 80
Unit 12 Writing as Medicine 90
Unit 13 Blocking Cancer Spread 101
Unit 14 Drug Safety：Race and Gender Matter 111
Unit 15 Designing Foods to Lower Cholesterol 121
Answers 131