1. Manuel Piti Fajardo University Hospital, Ciudad Escolar Abel Santamaría. U/M 9958, Santa Clara city, Villa Clara, Cuba
2. Arnaldo Milián University Hospital, Santa Clara St., Santa Clara city, Villa Clara, Cuba
3. Center of Molecular Immunology, 216 St, corner 15, Atabey, Havana, Cuba
4. Superior Institute of Basic & Preclinical Sciences of Havana “Victoria de Girón”, Street 25, Playa, Havana, Cuba