Renin-angiotensin system inhibitors improve the clinical outcomes of COVID-19 patients with hypertension Emerging Microbes & Infections J. Meng et al. Abstract ABSTRACT The dysfunction of the renin-angiotensin system (RAS) has been observed in coronavirus infection disease (COVID-19) patients, but whether RAS inhibitors, such as angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II ty