早产发生率及高危因素及对围产结局的影响

洪秀,盛晓园

Study on the incidence of preterm birth and risk factors and their influence on perinatal outcomes

Hong Xiu, Sheng Xiaoyuan

中国医院统计 . 2019, (3): 218 -220 . DOI: 10.3969/j.issn.1006-5253.2019.03.017