7Karaman S, Gi~nfisen I, Uyar M, et al. The effects of morphine and fen- tanyl alone or in combination added to intmtheeal bupivaeaine in spinal anesthesia for cesarean section[J]. Agri ,2011,23 (2) : 57-63.
8Florio P, Puzzutie]lo R, Filippeschi M,et al. Low-dose spinal anesthesia with hyperbaric buplvacaine with intrathecal fentanyl for operative hyst- eroscopy:a case series study[J]. J Minim Invasive Gyneeo1,2012,19 (1) :107-112.
9Grosomanidis V, Aroaniti E, Pourzitaki CH, et al. Coroparison between intubation through ILMA and Airtraq,in diferent non-conventional pa- tient positions : a manikin study ( J]. Emerg Med J, 2012,29 ( 1 ) : 32- 36.
