NOVA ZAIRINA LUBIS; HENING YUMI WARDOYO PUTRI. Level of Knowledge among Medical Student Regarding The Role of Vitamin C For Skin Health in Universitas Sumatera Utara. Sumatera Medical Journal, [S. l.], v. 5, n. 1, 2022. DOI: 10.32734/sumej.v5i1.6514. Disponível em: https://talenta.usu.ac.id/smj/article/view/6514. Acesso em: 4 aug. 2025.