He is a Former Professor Titular B Full time, Division of Health Sciences and Engineering, Campus Celaya Salvatierra University of Guanajuato. Since August 1, 2019, he is a Coordinator of Research and Medical Education Continuous, School of Medicine, University of Celaya, Mexico. He is also engaged in ProDep Ministry of Education (Mexico) (2010-2018), National System of Researchers Level I, Mexican Council of Science and Technology (2012-2018), Bachelor Medical Doctor and Surgeon UNAM and UAG 1984, Pediatrician Mexican Council of Certification in Pediatrics 1986, Epidemiology PostGraduate University of London 2002 He has obtained Masters and Doctorate Epidemiology AIU 2006, Master in Social Gerontology UNINI, 2017 and Candidate to Doctorate in Nutrition (UNINI). He has achieved 7 diplomas in teaching or research. He has published 136 articles of which 44 are indexed (IsiWeb, Scopus and PubMed), 18 chapters of books and more than 50 thesis directed in Bachelor, Master and Doctorate degrees and also have more than 70 free papers in National and International Conferences. He has conducted more than 400 translations of powerpoint presentations for on Epidemiology Supercourse, Internet and Global Health, Supercourse developer for Latin America on Epidemiology, Internet and Global Health, Senior Help Desk of the Library of Alexandria, Egypt. He also play a role as appraiser CONACYT, and Biovision Alexandria Library for research projects. He got Publons award 2018 by top 1% of reviewers. His research interest includes epidemiology, infectious diseases, chronic diseases, pediatrics, non-communicable diseases, and clinical trials.

Email: padillawarm@gmail.com, raygosan@ugto.mx;

ORCID 0000-0002-2109-5163