Distribution of fentanyl in the placental intervillous space and in the different maternal anf fetal compartments in term pregnant women - Duarte, Luciana de Barros; Moisés, Elaine Cristine Dantas; Cavalli, Ricardo de Carvalho; Lanchote, Vera Lúcia; Duarte, Geraldo; Cunha, Sergio Pereira da (European Journal of Clinical Pharmacology, 2009)