ERDEN, Ayşe. EVALUTION OF PORTAL VENOUS SYSTEM WITH COLOR DOPPLER ULTRASONOGRAPHY. Turkish Journal of Gastroenterology, [S. l.], v. 4, n. 2, p. 369–372, 1993. Disponível em: https://turkjgastroenterol.org/index.php/tjg/article/view/274. Acesso em: 1 jan. 2026.