The application of cohort analysis to the study of ionizing radiation and longevity in physicians.
D015331:Cohort Studies; D004194:Disease; D006801:Humans; D008136:Longevity / Q000706:statistics & numerical data*; D010820:Physicians; D011832:Radiation Injuries / Q000706:statistics & numerical data*; D011839:Radiation, Ionizing
LONGEVITY/statistics; PHYSICIANS/diseases; RADIATION INJURY/statistics