Pinheiro, Luís, João Ramires, Margarida Lucas, and Rui Victorino. 2003. “A Retrospective Study of Problems With Physicians, Experienced by Patients Undergoing Haemodialysis, in an Internal Medicine Service”. Portuguese Journal Internal Medicine 10 (1). Lisboa, Portugal:13-22. https://revista.spmi.pt/index.php/rpmi/article/view/1782.