LEVEL OF KNOWLEDGE OF STUDENT IN SMA MUHAMMADIYAH01 MEDAN TO DECREASED VISUAL ACTIVITY. JIMKI: Jurnal Ilmiah Mahasiswa Kedokteran Indonesia, [S. l.], v. 8, n. 3, p. 35–40, 2021. DOI: 10.53366/jimki.v8i3.250. Disponível em: https://jimki.bapin.or.id/main/article/view/250. Acesso em: 27 sep. 2025.