Gomez Nestor A, Gutierrez Jorge O
School of Medicine, Universidad de Guayaquil, Guayaquil, Ecuador.
School of Medicine, Universidad Espíritu Santo, Samborondón, Ecuador.
J Matern Fetal Neonatal Med. 2020 Jul;33(13):2308. doi: 10.1080/14767058.2018.1541082. Epub 2018 Nov 26.