ACE2 and non-small cell lung carcinoma: Noticeably, in ACE2 low expressing group, positive VM presence was related to shorter periods of NSCLC patients than negative VM presence (P = 0.021, Figures 2A, B); but with respect to patients with ACE2 high level, there was no significant difference in survival between two groups (P = 0.179, Figures 2C, D).