共 43 条
[21]
LEES D H, 1969, Journal of Obstetrics and Gynaecology of the British Commonwealth, V76, P615
[23]
LOUW JT, 1958, 2 P C INT GYN OBST M, P314
[25]
MCLENNAN CE, 1960, AM J OBSTET GYNECOL, V80, P982
[26]
MILLS W, 1964, P ROY SOC MED, V57, P467
[27]
MITCHELL J S, 1968, Journal of Obstetrics and Gynaecology of the British Commonwealth, V75, P1268
[30]
NOLAN JF, 1961, OBSTET GYNECOL, V17, P601