Xu, K.
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机构:
Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Publ Hlth, Dept Maternal & Child Hlth, 13 Hangkong Rd, Wuhan 430030, Peoples R China
Sichuan Univ, West China Hosp, Evidence Based Nursing Ctr, Chengdu, Sichuan, Peoples R China Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Publ Hlth, Dept Maternal & Child Hlth, 13 Hangkong Rd, Wuhan 430030, Peoples R China