ACE2 and COVID-19: When we compared the clinical-laboratory variables, and ACE2 G8790A gene polymorphism, age (51.8 ± 26.1), hemoglobin (15.8 ± 0.92 g/dL), creatinin (1.05 ± 0.15 mg/dL), urea (45.6 ± 28.7 mg/dL) levels of the COVID-19 patients with lung involvement with AA genotype were higher compared with the GG and GA genotypes.