Representativeness of samples from general practice lists in epidemiological studies: case-control study.
Smith
A G
AG
Epidemiology and Genetics Unit, University of Leeds, Leeds LS2 9LN. alex.smith@egu.leeds.ac.uk
Fear
N T
NT
Law
G R
GR
Roman
E
E
D016022:Case-Control Studies; D004739:England; D004812:Epidemiologic Methods; D005194:Family Practice / Q000706:statistics & numerical data*; D006801:Humans; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data*; D012111:Residence Characteristics; D012959:Socioeconomic Factors