Authors
Martha Edilia Palacios Nava
Public Health Department, Faculty of Medicine, National Autonomous University of Mexico
Ana Rosa Moreno Sánchez
Public Health Department, Faculty of Medicine, National Autonomous University of Mexico
María del Pilar Paz Román
Public Health Department, Faculty of Medicine, National Autonomous University of Mexico
Juan José García García
Public Health Department, Faculty of Medicine, National Autonomous University of Mexico
Rodolfo Nava Hernández
Occupational Health, Graduate Studies Division, Faculty of Medicine
