Al-Athooby M, Hazaa E, Ali H, Mojalli S, Alhag F, Almohagri E, et al. Assessment of Drug-Related Problems, Medication Adherence and Polypharmacy Among Elderly Outpatients in Sana’a City, Yemen. 21UMAS Institutional Repository [Internet]. 2026 Sep. 28 [cited 2026 Oct. 30];7(2):1-67. Available from: https://ojs.21umas.edu.ye/irss/article/view/344