Ethical Evaluation of Pharmaceutical Marketing in Sana’a City, Yemen. Yemeni Journal for Medical Sciences, [S. l.], v. 14, n. 1, p. 13–21, 2021. DOI: 10.20428/yjms.v14i1.1721. Disponível em: https://journals.ust.edu/index.php/yjms/article/view/1721. Acesso em: 20 apr. 2025.