Correlation of Stress Levels and the Incidence of Pityriasis Sicca in Final Year Students of the Faculty of Medicine, Universitas Sumatera Utara Class of 2017. Sumatera Medical Journal, [S. l.], v. 4, n. 2, 2021. DOI: 10.32734/sumej.v4i2.5775. Disponível em: https://idjpcr.usu.ac.id/smj/article/view/5775. Acesso em: 5 aug. 2025.