Graner, V.R. and Barros, S.M.O. de 2009. Maternal complications and neonatal events associated to multiple pregnancies resulting from assisted reproduction techniques. Revista da Escola de Enfermagem da USP. 43, 1 (Mar. 2009), 103–109. DOI:https://doi.org/10.1590/S0080-62342009000100013.