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Impact of potential unmeasured confounders on the association between use of renin–angiotensin system inhibitors and risk of (A) incident hospitalization/death for COVID‐19 and (B) all‐cause death in COVID‐19 cases. ACEi, angiotensin‐converting enzyme inhibitor; ARB, angiotensin receptor blocker; CI, confidence interval; HR, hazard ratio; OR, odds ratio.
