RUBIO-RIVAS, M.; FORMIGA, F.; GRILLO, S.; GILI, F.; CABRERA, C.; CORBELLA, X. “Lymphopenia as prognostic factor for mortality and hospital length of stay for elderly hospitalized patients”. Aging Clin Exp Res, agost del 2016; 28(4): 721-7. doi:10.1007/s40520-015-0474-5