Effect of Cage Material and Size on Fusion Rate and Subsidence Following Biportal Endoscopic Transforaminal Lumbar Interbody Fusion. - You, Ki-Han; Cho, Samuel K.; Hwang, Jae-Yeun; Cha, Sun-Ho; Kang, Min-Seok; Park, Sang-Min; Park, Hyun-Jin (Neurospine, 2024)