Sicras-Mainar, A.; Navarro-Artieda, R.; Ruiz-Torrejón, A.; Prados-Torres, A. Estimation of Chronic Co-Morbidity on Health Costs in Elderly Patients With Neurological Disorders. Rev Peru Med Exp Salud Publica 2011, 28 (3). https://doi.org/10.17843/rpmesp.2011.283.541.