1. Doctorate in Medical Sciences, Temuco, Chile
2. School of Medicine, Universidad del Azuay, Cuenca, Ecuador
3. Núcleo Milenio de Sociomedicina. Quito, Ecuador
4. Zero Biomedical Research. Quito, Ecuador
5. Center of Excellence in Morphological and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile