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Subject
- Amblyopia2
- Asbestos1
- Bronchitis1
- Carcinogens1
- Cardiovascular Diseases8
- Coal Mining1
- Drug Interactions1
- Exercise2
- Gastrointestinal Diseases4
- Lung Diseases, Obstructive9
- Morbidity1
- Mortality1
- Neoplasms[remove]10
- Nicotine1
- Occupational Exposure2
- Peptic Ulcer1
- Pharmacology1
- Precancerous Conditions1
- Pregnancy6
- Pregnancy Complications1