1. Immunology Research Unit; CMN S-XXI, IMSS; Mexico City Mexico
2. Infectious Diseases Research Unit; CMN S-XXI, IMSS; Mexico City Mexico
3. Research Center in Health Population; National Institute of Public Health; Cuernavaca Morelos Mexico
4. Department of Pathology; National Institute for Cancer; Mexico City Mexico
5. Department of Sarcomas; UMAE Oncology; CMN S-XXI, IMSS; Mexico City Mexico