Authors:
Ryall, RG
Callen, D
Cocciolone, R
Duvnjak, A
Esca, R
Frantzis, N
Gjerde, EM
Haan, EA
Hocking, T
Sutherland, G
Thomas, DW
Webb, F
Citation: Rg. Ryall et al., Karyotypes found in the population declared at increased risk of Down syndrome following maternal serum screening, PRENAT DIAG, 21(7), 2001, pp. 553-557