Cost differences between autologous and nonautologous cranioplasty implants: A propensity score–matched value driven outcomes analysis oleh Matthew Findlay, Sawyer Z. Bauer, Diwas Gautam, Matthew Holdaway, Robert B. Kim, Walid K. Salah, Spencer Twitchell, Sarah T. Menacho, Gurpreet S. Gandhoke, Ramesh Grandhi