Management of Angle Class I Malocclusion with Severe Crowding and Bimaxillary Protrusion by Extraction of Four Premolars: A Case Report. Acta Med Philipp [Internet]. 2019 Oct. 10 [cited 2025 Apr. 5];53(5). Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/76