Extension and dentin differentiation potential of dental pulp stem cells from human deciduous teeth on the stiff matrix surface  
Li Zhangyi, Liu Fengting, Huang Jianyong, Su Xiaoying, Wang Zhixing, Zheng Quan, Li Yanxia, Liu Xiaozhi
Chinese Journal of Tissue Engineering Research . 2020, (13): 2005 -2010 .  DOI: 10.3969/j.issn.2095-4344.2058