Efficacy Of Regular Positioning with Ripple Mattress Vs Ripple Mattress Alone in Preventing Pressure Ulcer Among Geriatric Patients in Medical Ward. Journal of Engineering and Health Sciences, [S. l.], v. 8, n. 1, p. 45–60, 2024. Disponível em: https://www.ejournal.unimel.edu.my/index.php/JEHS/article/view/1863. Acesso em: 21 mar. 2026.