A survey of knowledge, attitude, and practice of oral hygiene amongst healthcare workers at a tertiary hospital in Northwestern Nigeria. Pyramid Journal of Medicine, [S. l.], v. 6, n. 2, 2023. DOI: 10.4081/pjm.2023.349. Disponível em: https://africa.pagepress.net/pjm/article/view/349. Acesso em: 1 mar. 2026.