Li, Houxuan, et al. “Clinical and Radiographic Evaluation of Bio-Oss Granules and Bio-Oss Collagen in the Treatment of Periodontal Intrabony Defects: A Retrospective Cohort Study”. Journal of Applied Oral Science, vol. 32, Feb. 2024, p. e20230268, https://doi.org/10.1590/1678-7757-2023-0268 .