共 27 条
- [3] Cans C, 1998, PRENATAL DIAG, V18, P683, DOI 10.1002/(SICI)1097-0223(199807)18:7<683::AID-PD327>3.3.CO
- [4] 2-7
- [5] *CONF ENQ MAT CHID, 2004, PER MORT SURV REP 20, P7
- [6] Crane Elizabeth, 2006, Downs Syndr Res Pract, V10, P41, DOI 10.3104/reports.304
- [7] DELPORT SD, 1995, S AFR MED J, V85, P11
- [8] DeVore GR, 2001, PRENATAL DIAG, V21, P40, DOI 10.1002/1097-0223(200101)21:1<40::AID-PD980>3.0.CO
- [9] 2-U