Gamil Q. Othman, Abdulsalam M. Halboup and Mohammed M. Battah 2021. Ethical Evaluation of Pharmaceutical Marketing in Sana’a City, Yemen. Yemeni Journal for Medical Sciences. 14, 1 (Feb. 2021), 13–21. DOI:https://doi.org/10.20428/yjms.v14i1.1721.