M. Abdulla N, I. Al-Bustani A. Skeletal and dental changes induced. by frankel (FR-2) apphance. MDJ [Internet]. 2005 Jun. 15 [cited 2024 Jul. 22];2(1):80-6. Available from: https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/1050