共 20 条
[1]
BADRIA L, 1976, Journal of Clinical Ultrasound, V4, P403, DOI 10.1002/jcu.1870040606
[2]
Bell R L, 1976, J Tenn Med Assoc, V69, P341
[5]
CAMPBELL S, 1968, Journal of Obstetrics and Gynaecology of the British Commonwealth, V75, P1007
[7]
DONALD I, 1968, Journal of Obstetrics and Gynaecology of the British Commonwealth, V75, P993
[10]
HARRISON R, 1975, OBSTET GYNECOL, V46, P389