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Subject
- Amblyopia[remove]3
- Cardiovascular Diseases3
- Exercise1
- Gastrointestinal Diseases1
- Lung Diseases, Obstructive[remove]3
- Neoplasms3
- Peptic Ulcer2
- Pregnancy3
- Respiratory Hypersensitivity1
- Smoking3
- Tobacco Smoke Pollution1
- Tobacco Use Disorder3