25 Cheng Cheng H H Wang Wang Y Y Wang Wang GQ GQ Organ-protective effect of angiotensin-converting enzyme 2 and its effect on the prognosis of COVID-19 Organ-protective effect of angiotensin-converting enzyme 2 and its effect on the prognosis of COVID-19 J Med Virol J Med Virol 2020 2020 92 92 726 726 730 730 10.1002/jmv.25785 10.1002/jmv.25785 32221983 32221983. The gene discussed is ACE2; the disease is COVID-19.