@article{article37960150,
title   = {Biopsia de vilo corial tardia},
author = {Cha, S C and Kondo, M M and Pedreira, D A L and Toma, O T and Okumura, Maria and Zugaib, Marcelo},
year = {1993},
journal   = {Revista de Ginecologia e Obstetricia}
}