1. Cellular and Molecular Physiology Laboratory (CMPL) and Perinatology Research Laboratory (PRL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Catolica de Chile, P.O. Box 114-D, Santiago, Chile
2. Biomedical Department, Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile