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Screening for trisomy 21 in twins using first trimester ultrasound and maternal serum biochemistry in a one-stop clinic: a review of three years experience
Kevin Spencer, Kypros H. NicolaidesVolume:
110
Year:
2003
Language:
english
Pages:
5
DOI:
10.1046/j.1471-0528.2003.02222.x
File:
PDF, 68 KB
english, 2003