生育政策调整下高龄备孕优生保健服务的应用价值研究(3)
[3]Stacy B,Wojdyla D,Lale S,et al. The worldwide incidence of pre-term birth:A systematic review of maternal mortality and morbidity[J].Bull World Health Organ,2010,88(1): 31-38.[4]WHO. Born too soon-the globe action report on preterm birth[M].Geneva:World Health Organization ......
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