2Austin K L, Stapleton JV, Mather LEo Multiple in tramuscular injections : a major source of variability in analgesic resPonse to mepefidine [J]. pain, 1980,8 ( 1 ) :47 -62.
3Austin KL,Stapleton JV, Mather LEo Relafioneship between blood meperidine concentration and analgesic response[J]. Anesthe slology, 1980,53 (6) :460 - 466.
1Jeff Gadsden, Stuart Hart, Alan C. Pots-cesarean delivery pain [J]. Anesth Analg,2005,101 :s62-s69.
2Austin KL, Stapleton JV, Mather LE. Multiple intramuscular injections: a major source of variability in analgesic response to meperidine[J]. Pain, 1980,8 : 47-62.
3Austin KL,Stapleton JV ,mather LE. Relationship between blood meperidine concentration and analgesic response[J]. Anesthesiology, 1980,53:460-466.
4Sechzu PH. Objective measurement of pain[J]. Anesthesiology, 1968,29:209-210.
5Wang JK,Nauss LE,Thomas JE. Pain relief by intrathecally applied morphine in man [J ]. Anesthesiology, 2001,87:135-143.
6Cousins M J, Mather LE. Intrathecal and epidural adminis-tration of opioids [J]. Anesthesiology, 2003,61:276-310.
8De Leon-Casasola OA. Clinical outcome after epidural anesthesia and analgesia in high-risk surgical patients [J]. Reg Anaesth, 1999,21:144-148.
9Yang T,Breen TW,Archer D,et al. Comparision of 0. 25 mg and 0. 1 mg intrathecal morphine for analgesia after Cesarean section [J]. Can J Anaesth,1999,46:856-860.
10Eisenach JC, Grice SC, Dewan DM. Patient-controlled analgesia following cesarean section:a comparison epidural andintramuscular narcotics[J]. Anesthesiology, 1988,68 :444-448.
