Transplantation of human stem cells from the apical papilla for treating dextran sulfate sodium-induced experimental colitis 
Li Jia, Tang Ying, Zhu Qi, Zhang Yanping, Zhou Peigang, Gu Yongchun
Chinese Journal of Tissue Engineering Research . 2020, (7): 1069 -1075 .  DOI: 10.3969/j.issn.2095-4344.2010