中国当代医药
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中国当代医药  2020, Vol. 27 Issue (12): 116-118    DOI:
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Application effect of labor analgesia in primiparae with natural childbirth
YANG Yu1           WANG Tao2
1.Department of Obstetrics and Gynecology, Jianghan Oilfield General Hospital, Hubei Province, Qianjiang 433124,China; 
2.Department of Urology, Jianghan Oilfield General Hospital, Hubei Province, Qianjiang 433124, China
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