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Subject
- Lung Diseases, Obstructive[remove]9
- Neoplasms[remove]9
- Smoking9
- Cardiovascular Diseases8
- Tobacco Use Disorder8
- Pregnancy6
- Gastrointestinal Diseases4
- Amblyopia2
- Exercise2
- Occupational Exposure2
- Tobacco2
- Tobacco Smoke Pollution2
- Asbestos1
- Bronchitis1
- Coal Mining1
- Drug Interactions1
- Morbidity1
- Mortality1
- Peptic Ulcer1
- Pharmacology1