CABALLERO-FLORES, J. D. Depression, self-esteem disorders and emotional distress during the COVID-19 pandemic in the elderly population of Mexico City and the metropolitan area of the valley of Mexico (a preliminary study). International Journal of Research in Medical Sciences, [S. l.], v. 11, n. 4, p. 1066–1072, 2023. DOI: 10.18203/2320-6012.ijrms20230845. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/11942. Acesso em: 14 oct. 2025.