EFFECTS OF AIR POLLUTION ON RESPIRATORY HEALTH OF ADULTS IN THREE CHINESE CITIES.
The authors examined potential associations between air-pollution exposures and respiratory symptoms and illnesses of 4,108 adults who resided in 4 districts of 3 large, distinct Chinese cities. Data on respiratory health outcomes and relevant risk factors for parents and children were obtained via standardized questionnaires in the winter of 1988.
Zhang, J., Z. Qian, L. Kong, L. Zhou, AND R. S. CHAPMAN. EFFECTS OF AIR POLLUTION ON RESPIRATORY HEALTH OF ADULTS IN THREE CHINESE CITIES. ARCHIVES OF ENVIRONMENTAL HEALTH 54(6):373-381, (1999).