Seroprevalence of SARS-CoV-2 infection among residents and workers of long-term care facilities in Ribeirão Preto, Brazil: an epidemiological survey - Lima, Nereida Kilza da Costa; Viana, Jaciara Machado; Moriguti, Júlio César; Ferriolli, Eduardo; Santos, Jair Licio Ferreira; Belissimo-Rodrigues, Fernando (Geriatrics, Gerontology and Aging, 2021)