Pinheiro, L., J. Ramires, M. Lucas, and R. Victorino. “A Retrospective Study of Problems With Physicians, Experienced by Patients Undergoing Haemodialysis, in an Internal Medicine Service”. Internal Medicine, vol. 10, no. 1, Mar. 2003, pp. 13-22, https://revista.spmi.pt/index.php/rpmi/article/view/1782.