Wang C, Huang H- yi, Wang X. Structural Toughness Enhancement Method for Material Extrusion-Based 3D-Printed Model: A Rigid Shell-Flexible Infill Composite Structure. BioRes [Internet]. 2025 Aug. 19 [cited 2025 Oct. 18];20(4):8949-56. Available from: https://ojs.bioresources.com/index.php/BRJ/article/view/24952