共 28 条
[24]
Saling E, 1975, J Perinat Med, V3, P115, DOI 10.1515/jpme.1975.3.2.115
[25]
SMITH RS, 1970, OBSTET GYNECOL, V36, P151
[26]
TODD WD, 1963, OBSTET GYNECOL, V22, P583
[28]
WRIGHT RC, 1959, OBSTET GYNECOL, V14, P758