共 12 条
[1]
Boyden EA, 1944, P SOC EXP BIOL MED, V56, P200, DOI 10.3181/00379727-56-14651P
[2]
DAVISON J S, 1970, Journal of Obstetrics and Gynaecology of the British Commonwealth, V77, P37
[3]
HANSEN R., 1937, Zentralblatt fur Gynakologie, V61, P2306
[6]
HUNT JN, 1958, J OBSTET GYNAECOL, V65, P78
[7]
HYTTEN FE, 1980, CLIN PHYSL OBSTETRIC, P147
[8]
Lunn JN, 1982, MORTALITY ASS ANAEST

