GURVITS, Grigoriy E. Black Esophagus: Diagnostic Associations and Management Strategies. Turkish Journal of Gastroenterology, [S. l.], v. 33, n. 5, p. 451–452, 2022. DOI: 10.5152/tjg.2020.20151. Disponível em: https://turkjgastroenterol.org/index.php/tjg/article/view/3882. Acesso em: 1 jan. 2026.