PMMA Cranioplasty Making by Using Open-Source CAD Software, PLA Printers, and Silicone Rubber Molds: Technical Note with Two Illustrative Cases - Ashraf, Mohammad; Zahra, Shah Gul; Farooq, Minaam; Choudhary, Nabeel; Ashraf, Naveed (Asian Journal of Neurosurgery, 2023)