Park SY, Kim JW, Kim YM, Kim JM, Lee MH, Lee BY, Han JY, Kim MY, Yang JH, Ryu HM
We present frequencies of fetal chromosomal abnormalities in 4,907 prenatal cytogenetic examinations at Samsung Cheil Hospital from 1988 to 1997 for 10 yr duration. Prenatal karyotypes were undertaken in 3,913...