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consumer-products × 155medical-science × 19
chemistry × 14
environmental-health × 13
nutrition × 11
marketing × 10
physics × 9
biology × 8
technology × 7
safety × 6
electromagnetism × 6
mobile-phones × 6
advertising × 6
electronics × 6
road-vehicles × 5
hygiene × 5
united-states × 4
water × 4
cooking × 4
natural-remedies × 3
cancer × 3
dentistry × 3
toxicology × 3
clothing × 3
energy-efficiency × 3