作者单位：
Qingdao Hiser Med Grp, Dept Gastroenterol, Qingdao 266033, Shandong, Peoples R China
[1]
Shandong Univ, Dept Obstet & Gynecol, Shandong Prov Hosp, 324 Jingwu Rd, Jinan 250021, Shandong
[2]
Qingdao Women & Children Hosp, Dept Internal Med, Qingdao 266000, Shandong, Peoples R China
[3]
Eighth Peoples Hosp Qingdao, Dept Obstet, Qingdao 266100, Shandong, Peoples R China
[4]
Qingdao Univ, Dept Obstet & Gynecol, Affiliated Hosp, Qingdao 266000, Shandong, Peoples R China
[5]
发布时间
2018-07-27
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