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Non-echogenic nuchal oedema as a marker in trisomy 21 screening
van Zalen-Sprock, M.M, Van Vugt, J.M.G, Van Geijn, H.PVolume:
339
Language:
english
Journal:
The Lancet
DOI:
10.1016/0140-6736(92)92074-P
Date:
June, 1992
File:
PDF, 339 KB
english, 1992