中国当代医药
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中国当代医药  2017, Vol. 24 Issue (20): 110-112    DOI:
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The influence of unipara by labor analgesia combined with labor in liberal position
CHEN Yue-hua  LIANG Yu-yun  ZENG Li-ping
Department of Obstetrics and Gynecology,Guzhen People′s Hospital in Zhongshan City,Guangdong Province,Zhongshan 528421,China
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