共 25 条
[1]
ACKER DB, 1988, OBSTET GYNECOL, V71, P389
[4]
[Anonymous], 2003, INT J GYNECOL OBSTET, V80, P87
[6]
BOYD ME, 1983, OBSTET GYNECOL, V61, P715
[9]
Evans-Jones G, 2003, ARCH DIS CHILD-FETAL, V88, P185, DOI 10.1136/fn.88.3.F185
[10]
GHERMAN R, 2005, J FETAL MATERNAL MED, V16, P221