title: Epidemiology and biostatistics.
authors.affiliation: Great Valley Health Occupational Medicine, Paoli Memorial Hospital, Pennsylvania 19301, USA.
authors.forename: M H
authors.initials: MH
authors.lastname: Lewitt
mesh_terms: D001699:Biometry; D004812:Epidemiologic Methods; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology*; D009787:Occupational Medicine / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity