A single‑centre audit of request forms and the 2011 appropriate use criteria for transthoracic echocardiography. Port Harcourt Medical Journal, [S. l.], v. 14, n. 3, p. 114–118, 2020. DOI: 10.60787/phmj.v14i3.162. Disponível em: https://phmj.org.ng/index.php/home/article/view/162. Acesso em: 22 dec. 2024.