GHANEM, Yahya Ali. Upper Gastrointestinal Cancer in Yemen: A hospital-based study . Sana’a University Journal of Medicine and Health Sciences, [S. l.], v. 2, n. 1, 2023. DOI: 10.59628/jchm.v2i1.308. Disponível em: https://journals.su.edu.ye/index.php/jchm/article/view/308. Acesso em: 5 may. 2024.