共 14 条
[1]
*BRIT MED ASS, 1980, HDB MED ETH, P30
[3]
GREENBERG F, 1979, LANCET, V2, P908
[5]
MILUNSKY A, 1983, BRIT J OBSTET GYNAEC, V90, P497, DOI 10.1111/j.1471-0528.1983.tb08953.x
[7]
SIBERT JR, 1979, LANCET, V2, P37
[9]
SMITHELLS RW, 1982, ARCH DIS CHILD, V57, P965