Correction: Harmanci et al. Production of 3D Printed Bi-Layer and Tri-Layer Sandwich Scaffolds with Polycaprolactone and Poly (vinyl alcohol)-Metformin towards Diabetic Wound Healing. Polymers 2022, 14, 5306. - Harmanci S; Dutta A; Cesur S; Sahin A; Gunduz O; Kalaskar DM; Ustundag CB (Polymers, 2025)