Dr. Guerrero-Romero is Level III National Researcher of the Mexican National System of Researchers. Doctorate from the Autonomous University of Nuevo León, Internist from the Ministry of Health, and Fellow of the ACP and the American Society of Internal Medicine. Has published 226 articles in indexed journals and 35 book chapters. Is or has been, member of the Editorial Committee in 7 international journals and reviewer in 155 scientific journals.