Ding, B., Wu, K. and Chen, F. (2026) “Study on the Osteogenic Effects of Yuliang Collagen Implantation Without Bone Grafting at 6–9 mm from the Maxillary Sinus Floor: A Prospective Cohort Study”, World Scientific Research Journal, 12(1), pp. 6–11. doi:10.6911/WSRJ.202601_12(1).0002.