COVID(15) COVID‐19(14) Result(14) pandemic(10) COVID‐19(8) reported(7) Patient(7) conducted(7) positive(5) significantly(5) approach(5) died(5) analyzed(4) required(4) coronavirus disease(4) SARS‐CoV‐2(4) hospital(4) patients(3) age(3) article(3) eligible(3) vaccination(3) database(3) predictor(3) inclusion criteria(3) Comorbidity(3) carried(3) Diagnosis(3) intensive care(3) outcomes(3)