Department of Obstetrics, the International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
CHEN Shu-fang, ZHANG Chen, CHEN Yan, CHENG Wei-wei. Analysis of factors influencing safety of department of obstetrics based on “the second child” policy and investigation of countermeasures[J]. , doi: 10.3969/j.issn.1674-8115.2016.05.025.