共 7 条
[1]
BEAZLEY J M, 1970, Journal of Obstetrics and Gynaecology of the British Commonwealth, V77, P193
[2]
BEAZLEY JM, 1971, LANCET, V1, P152
[4]
GILLESPIE AR, IN PRESS
[5]
KARIM S M M, 1970, Journal of Obstetrics and Gynaecology of the British Commonwealth, V77, P200