Supplemental material, sj-tif-1-car-10.1177_1947603520988153 for Infrapatellar Fat Pads–Derived Stem Cell Is a Favorable Cell Source for Articular Cartilage Tissue Engineering: An In Vitro and Ex Vivo Study Based on 3D Organized Self-Assembled Biomimetic Scaffold by Chen-Chie Wang, Ing-Ho Chen, Ya-Ting Yang, Yi-Ru Chen and Kai-Chiang Yang in CARTILAGE