6Buysse DJ,Reynolds CF,Monk TH,et al.The Pittsburgh Sleep Qualily Index:a new instrument for psychiatric practice and research.Psychiatry rse 1989,28(2):193.
9Demirel, I. , Ozer, A. B. , Atilgan, R. et al. Comparison of patient - controlled analgesia versus continuous infusion of tramadol in post - cesarean section pain management I J]. The journal of obstetrics and gynaecology research, 2014,40(2) :392 -398.
