1. Unit of R&D in Bioprocesses (UDIBI), National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico.
2. Department of Psychoimmunology, National Institute of Psychiatry, “Ramón de la Fuente,” Mexico City, Mexico.
3. School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico.
4. Unit of Research, Development and Innovation in Medicine and Biotechnology/Transfer Factor Project (UDIMEB/PFT), National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico.