Table of Contents

Original Research

Page 5-16
Tomás Echaveguren, Diego Carrasco
Page 17-31
Daniel Ruiz, Claudia Ramírez, Laura Logreira, María León
Page 33-38
Juan Pablo Cárdenas, Edmundo Muñoz, Cristian Riquelme, Francisco Hidalgo
Page 39-52
Yisel Larrúa, Rafael Larrua, Valdir P. Silva
Page 53-68
Jorge Bonilla, Luciano M. Bezerra, Rafael Larrúa, Carlos Recarey, Enrique Mirambell
Page 69-79
Javier Sotomayor, Mariana Ramírez