Carlos G. Boyzo-Jiménez, Department of Geriatrics and Education, Centro Médico ABC Observatorio, Mexico City, Mexico
Ivonne A. Roy-Garcia, Clinical Research Training Centre, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
Ipsae E. Melgoza-Toral, Department of Preventive Medicine, Centro Médico ABC Santa Fe, Mexico City, Mexico
Emiliano Martínez-Bravo, Department of Social Service, School of Medicine and Health Sciences, Tecnológico de Monterrey, Mexico City, Mexico