Bismarck Castañeda-Flores, Department of Geriatrics, Hospital General Regional No. 1, Instituto Mexicano del Seguro Social (IMSS), Charo; Division of Graduate, School of Medical and Biological Sciences Dr. Ignacio Chávez, Universidad Michoacana de San Nicolás de Hidalgo, Morelia; Michoacan, Mexico
Miriam C. Vargas-Arévalo, Department of Geriatrics, Hospital General Regional No. 1, Instituto Mexicano del Seguro Social (IMSS), Charo, Michoacan, Mexico
Lilian E. Pacheco-Magaña, Hospital Epidemiological Surveillance Unit, Hospital General Regional No. 1, IMSS, Charo, Michoacan, Mexico
Aleyda Ramírez-Martínez, Department of Geriatrics, Hospital General Regional No. 1, Instituto Mexicano del Seguro Social (IMSS), Charo; Division of Graduate, School of Medical and Biological Sciences Dr. Ignacio Chávez, Universidad Michoacana de San Nicolás de Hidalgo, Morelia; Michoacan, Mexico