Aisyah S, Purnamasari I, Hasanah U, Nasrullah D, Fitriyani VR. An overview of anxiety levels of Muhammadiyah citizens against COVID-19 vaccination in Surabaya. Qanun Medika [Internet]. 2023 Jul. 24 [cited 2025 Dec. 5];7(2). Available from: https://journal.um-surabaya.ac.id/qanunmedika/article/view/14450