Epidemiological studies

This title includes topics such as: 'Passing smoking and adult asthma', 'Traffic, outdoor air pollution, and asthma', 'Social environment, neighborhood stress, and adult asthma', 'Viral infections and asthma exacerbations in children and adults', 'Occupational exposures and exacerbation of adult asthma', 'Asthma in the inner city: Indoor exposures and respiratory status', 'Dampness and mold in the indoor environment: implications for asthma', 'Indoor combustion and asthma', 'Dietary factors and asthma', 'Environment and genetics', and 'Obesity and asthma'.