Salsabila V, Hazlianda CP. The Relationship Between Anxiety Level with the Onset of Acne Vulgaris in Medical Faculty of Universitas Sumatera Utara 2016 – 2018. Sumat. Med. J. [Internet]. 2022May1 [cited 2025Aug.4];5(2). Available from: https://talenta.usu.ac.id/smj/article/view/7890