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Preventive Medicine  2020, Vol. 32 Issue (8): 778-781    DOI: 10.19485/j.cnki.issn2096-5087.2020.08.005
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Effect evaluation of two labor analgesia methods with Doula services
LI Haiyan, CHEN Pei, CHEN Hong, XU Jie
Hangzhou Women's Hospital, Hangzhou, Zhejiang 310008, China