共 21 条
[3]
CRAWFORD JS, 1982, OBSTETRIC ANALGESIA, P106
[4]
DUFFY BL, 1982, MED J AUSTRALIA, V2, P37
[8]
HOLDSWORTH JD, 1978, J INT MED RES, V6, P70
[9]
JAMES CF, 1983, ANESTH ANALG, V62, P266