COVID-19(10) Patient(5) coronavirus disease(5) Analysis(5) patients hospitalized(5) domain(4) intensive care unit(4) Genomic DNA(4) Polymorphisms(4) ACE1 gene(4) Older age(4) Bioinformatics analysis(4) was performed(4) ACE(4) ACE1/ACE2(4) independent predictors(4) intensive care(4) peripheral blood lymphocytes(4) Genetic(4) allele(4) ICU(4) exon 1(4) Cohort(4) automated(4) was used(4) Frequency(4) purified(4) statistical analysis(4) ACE2(4) peripheral blood lymphocyte(4)