ACE2 in tumor cells and tumor vasculature: Negligible intercellular transfer from cancer cells into endothelial cellsZhi-Jie Liu, Yan Mei, Jiang-Li Lu, Jia-Bin Lu, Yun Cao, Mu-Yan Cai, Li-Sheng Zheng, Ming-Dian Wang, Li-Xia Peng, Yang Li, Bi-Jun Huang, Jin-Ping Yun and Chao-Nan QianVis Cancer Med, 2 (2021) 3DOI: https://doi.org/10.1051/vcm/2021004