Environmental epidemiology--strengths and weaknesses.
Paddle
G M
GM
Institute of Occupational Health, University of Birmingham, UK.
Harrington
J M
JM
D015982:Bias; D016000:Cluster Analysis; D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D003430:Cross-Sectional Studies; D004781:Environmental Exposure; D004787:Environmental Pollution; D004812:Epidemiologic Methods; D006801:Humans