1. Department of Immunology; Instituto Nacional de Cardiología Ignacio Chávez; Mexico City Mexico
2. Department of Rheumatology; Instituto Nacional de Cardiología Ignacio Chávez; Mexico City Mexico
3. Department ofPhysiology; Instituto Nacional de Cardiología Ignacio Chávez; Mexico City Mexico
4. Department ofHealth Care; Universidad Autónoma Metropolitana Xochimilco; Mexico City Mexico