山东省部分设立乡镇查痰点地区农民疑似肺结核患者的就诊延误情况
산동성부분설립향진사담점지구농민의사폐결핵환자적취진연오정황
Factors associated with patient delay for farmers of TB suspects in districts with Township Sputum Collecting Centers in Shandong Province
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