Retrospective exposure assessment in large occupational cohort studies in China: advantages and concerns.
Dosemeci
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D015982:Bias; D002681:China; D015331:Cohort Studies; D003625:Data Collection; D004784:Environmental Monitoring / Q000379:methods*; D015340:Epidemiologic Research Design; D006801:Humans; D016273:Occupational Exposure / Q000032:analysis*; D015203:Reproducibility of Results; D012189:Retrospective Studies