共 18 条
[1]
ATLAY RD, 1973, J OBSTET GYN BR COMM, V80, P63
[2]
BARAKA A, 1977, ANESTH ANALG, V56, P642
[5]
COHEN SE, 1980, 12TH ANN M SOC OBST
[9]
HOWARD FA, 1973, POSTGRAD MED J, V49, P53
[10]
KHAN TA, 1975, 5TH P INT S GASTR MO