1. National Center for Laboratory Animal Breeding, Havana, Cuba
2. Histology Department, Preclinical and Basic Science Institute, Havana, Cuba
3. Center of Molecular Immunology (CIM), Havana, Cuba
4. Center of Research and Development of Medicaments (CIDEM), Havana, Cuba
5. Institute of Neurology and Neurosurgery (INN), Havana, Cuba