1. High-flow, 24 h personal sampling: problems and solutions;Buckley,1988
2. Change in pulmonary function in children associated with air pollution episodes;Dockery;JAPCA,1982
3. Federal Register 52 (1987) 24,634-24,750, July.
4. Design of a self-administered personal daily activity questionnaire for evaluating exposure to combustion products;Freeman,1989
5. Indoor air aerosols: outdoor air influence on indoor air;Kulmala,1987