共 16 条
[2]
FARRER-BROWN G, 1970, Journal of Obstetrics and Gynaecology of the British Commonwealth, V77, P967
[4]
FERNSTROM I, 1955, ACTA RADIOL S122
[7]
FORSSMAN L, 1976, ACTA OBSTET GYN SCAN, V54, P21
[8]
HOLMGREN B, 1938, ACTA OBSTET GYNECOL, V18, P192, DOI DOI 10.3109/00016343809154438
[10]
KLINGENBERG I, 1973, ACTA OBSTET GYN SCAN, V52, P317, DOI 10.3109/00016347309157087