1. Doctoral Program in Morphological Sciences Faculty of Medicine Universidad de La Frontera Temuco Chile
2. Comparative Embryology Laboratory, Anatomy and Developmental Biology Program Faculty of Medicine Institute of Biomedical Sciences Universidad de Chile Santiago Chile
3. Department of Health Sciences Universidad de Aysén Coyhaique Chile
4. Department of Anatomy, Histology and Neuroscience Faculty of Medicine Universidad Autónoma de Madrid Madrid Spain
5. Center of Biotechnology on Reproduction (CEBIOR‐BIOREN) Faculty of Medicine Universidad de La Frontera Temuco Chile
6. Department of Basic Sciences Faculty of Medicine Universidad de La Frontera Temuco Chile