ACE2 and ovarian cancer: On the contrary, different ovarian cancer cohorts (GSE9891, 229962, 222257) in three databases showed that high expression level of ACE2 was associated with better prognosis (OS HR = 0.63, 95% CI = 0.40‐1.00, Cox P = .0485116; OS HR = 0.75, 95% CI = 0.64‐0.88, Cox P = .00027; OS HR = 0.83, 95% CI = 0.73‐0.95, Cox P = .0051; OS HR (high) = 0.65, Cox P = .016) (Table S2 and Figure 3O,S,U,Y).