Investigation on the Level of Evidence in Researches Done by Orthopedic Residents of the Department of Orthopedics, Philippine General Hospital over the Past Twenty-seven Years. Acta Med Philipp [Internet]. 2012 Oct. 13 [cited 2025 Oct. 3];46(2). Available from: https://luna.upm.edu.ph/index.php/acta/article/view/2164