Cardiologist and Nuclear Cardiology. Chief of Cardiology Medical Section and Nuclear Cardiology, National Medical Center “20 de Noviembre” ISSSTE, México City. Main Professor of Nuclear Cardiology Postgraduate Course, National Medical Center “20 de Noviembre” ISSSTE, México City. Associate Physician of PET/CT Unit, Faculty of Medicine UNAM (National Autonomous University of Mexico). Main Professor of Postgraduate Course Positron Emission Tomography and Computed Tomography (PET/CT) in Cardiology, PET/CT Unit, Faculty of Medicine UNAM. Associated Professor of Cardiology Specialty Course, National Medical Center “20 de Noviembre” ISSSTE, México City.