Kananda Pizano de Freitas, Márcia Regina Martins Alvarenga. “Polypharmacy and High Medication Regimen Complexity Index in the Elderly Assisted in Primary Health Care”. Rev Enferm UFPI, vol. 9, nº 1, dezembro de 2020, http://periodicos.ufpi.br/index.php/reufpi/article/view/690.