Placental weight and birth weight to placental weight ratio in monochorionic and dichorionic growth-restricted and non-growth-restricted twins

by Mariângela Alves Souza, Maria de Lourdes Brizot, Sckarlet Ernandes Biancolin, Regina Schultz, Mário Henrique Burlacchini de Carvalho, Rossana Pulcineli Vieira Francisco, Marcelo Zugaib