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Early vaginal bleeding and first-trimester markers for Down syndrome |
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| Authors: | Pierangela De Biasio Silvana Canini Angela Crovo Federico Prefumo Pier Luigi Venturini |
| Institution: | 1. U.O. di Ostetricia e Ginecologia, Istituto “G. Gaslini”, Università di Genova, Italy;2. Laboratorio di Analisi Chimico-Cliniche e Microbiologia, Istituto “G. Gaslini”, Genova, Italy |
| Abstract: | |
| Keywords: | early vaginal bleeding Down syndrome screening first trimester nuchal translucency PAPP-A free β-hCG |