Assessing bone regeneration potential of 3D scaffold-free cell pellets from periodontal ligament and bone marrow stem cells. - Liang, Xiang; Gong, Yuxin; Bai, Le; Ahmadi, Sina; Yu, Ming; Zhang, Zhou; Fang, Siya; Xu, Fangfang; Wang, Weiqi; Tu, Junbo; Na, Sijia (BMC Biotechnology, 2025)