title: Activities and organophosphate exposures: need for the numbers.
authors.forename: Robert I
authors.initials: RI
authors.lastname: Krieger
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000383:Agriculture; D002648:Child; D002669:Child Welfare; D002675:Child, Preschool; D003625:Data Collection; D004781:Environmental Exposure; D006801:Humans; D007306:Insecticides / Q000009:adverse effects / Q000032:analysis* / Q000652:urine; D016273:Occupational Exposure; D009943:Organophosphorus Compounds / Q000009:adverse effects / Q000032:analysis* / Q000652:urine; D015203:Reproducibility of Results; D018401:Sample Size
chemical_list: D007306:Insecticides; D009943:Organophosphorus Compounds