Letter. Response to: Wald, N.J. and Hackshaw, A.K. (1997). Combining ultrasound and biochemistry in first-trimester screening for Down's syndrome, Prenat. Diagn., 17, 821–829
T. M. Reynolds, F. Dunstan, B. Nix, K. Williams, J. Crossley, S. Holding, D. Krantz, D. Wright, I. Bray, K. SpencerVolume:
18
Year:
1998
Language:
english
Pages:
5
DOI:
10.1002/(sici)1097-0223(199805)18:53.0.co;2-#
File:
PDF, 70 KB
english, 1998