共 11 条
[2]
EDWARDS JH, 1960, LANCET, V1, P787
[4]
Jones K. L., 1988, SMITHS RECOGNIZABLE, P16
[5]
KHUDR G, 1971, OBSTET GYNECOL, V38, P697
[6]
PATAU K, 1960, LANCET, V1, P790
[8]
SALLER DN, 1990, AM J OBSTET GYNECOL, V163, P922