Feasibility of fat particles cryopreserved for different time for use as subcutaneous fillers 
Zheng Wanling1, Zhang Aijun2, Wang Hao1, Wang Pingping1, Li Jianhua1, Wen Minmin1, Jin Peisheng2
Chinese Journal of Tissue Engineering Research . 2019, (11): 1706 -1710 .  DOI: 10.3969/j.issn.2095-4344.1095