CHAUHAN, S.L.; BHATNAGAR, V.B.; SINGH, V.S.; ASIF ZAIDI, S. Serum Carcinoembryonic Antigen (CEA) Levels in Oesophageal Carcinoma . Asian Journal of Chemistry, [S. l.], v. 5, n. 1, p. 15–18, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/24744. Acesso em: 24 jul. 2024.