Unit 1 Lead Poisoning and Tooth Decay

Unit 2 Dioxin and Food

Unit 3 Tamiflu Approved to Treat Influenza

Unit 4 Drinking Coffee and Gallstone Disease

Unit 5 New Rice with Vitamin A

Unit 6 Fighting Obesity and Diabetes in Kids

Unit 7 AIDS Vaccine Initiative

Unit 8 Magnetic Cancer Treatment

Unit 9 Acupuncture's Expanding Role

Unit 10 Tuberculosis Infection Clue

Unit 11 Weather and Headaches

Unit 12 Writing as Medicine

Unit 13 Blocking Cancer Spread

Unit 14 Drug Safety：Race and Gender Matter

Unit 15 Designing Foods to Lower Cholesterol

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