title: Commentary on the design of cohort studies.
authors.affiliation: Division of Epidemiology, School of Public Health, University of California, Berkeley, California 94720-7360, USA. bt@uclink.berkeley.edu
authors.forename: Ira
authors.initials: I
authors.lastname: Tager
mesh_terms: D000397:Air Pollution / Q000009:adverse effects*; D016022:Case-Control Studies; D015331:Cohort Studies; D006801:Humans; D015993:Life Tables; D008137:Longitudinal Studies; D008171:Lung Diseases / Q000453:epidemiology; D011446:Prospective Studies; D012107:Research Design; D012189:Retrospective Studies