ZAYAS FUNDORA, Emmanuel. Sleep quality in medical students in the context of the COVID-19 pandemic. Revista de Ciencias Médicas de Pinar del Río, [S. l.], v. 26, n. 5, p. e5430, 2022. Disponível em: https://revcmpinar.sld.cu/index.php/publicaciones/article/view/5430. Acesso em: 1 ago. 2025.