To observe the clinical effects that bupivacaine that bupicevhe combined with different concentrations of morphine,fentanyl,sufentanil for postoperative epidural analgesia(PCEA)位义芳1-2
Yunnan province shuifu county Xiangjiaba hydropower Station HIV/AIDS high-risk behaviors of male workers integrated monitoring and analysis张金元, 贺朝英, 曾义虎3-4
To explore the death cause and strategles of Newborn in Xinxing county from 1999 to 2008朱晓河, 张耀森, 朱晓涛, 林万青8-10
Observation of curative effect of Tanshinone combined Compound Econazole Cream in the treatment of acne江国荣, 戴晖, 刘少文12-13
