PDF(250 KB)
CASE-CONTROL STUDY ON THE RISK FACTORS OF ASCARID INFECTION OF FARMERS IN HUBEI PROVINCE
YU Pin-Hong, CHEN Jian-She, ZHANG Chi, ZHANG Hua-Xun, CHEN Hui
PDF(250 KB)
PDF(250 KB)
CASE-CONTROL STUDY ON THE RISK FACTORS OF ASCARID INFECTION OF FARMERS IN HUBEI PROVINCE
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