Nunes, B. P.; Soares, M. U.; Wachs, L. S.; Volz, P. M.; Saes, M. de O.; Duro, S. M. S.; Thumé, E.; Facchini, L. A. Hospitalization in Older Adults: Association With Multimorbidity, Primary Health Care and Private Health Plan. Rev. saúde pública 2017, 51, 43. https://doi.org/10.1590/s1518-8787.2017051006646.