Descriptive characteristics (n (%) or stated otherwise) of the total study population and those who did and did not provide a blood sample.
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aAM, Arithmetic Mean.bSD, Standard Deviation.cPrevious or current regular contact (>once a week).dChi-square between providing and not-providing blood borderline significant with p = 0.07.eChi-square between providing and not-providing blood borderline significant with p = 0.08.fVM, veterinary medicine.
创建时间：
2015-12-02
