“…Among these seven studies, seven were observational cohort studies [24] , [25] , [26] , [27] , [37] , [38] , [39] , three was case-controlled study [30] , [35] , [36] and two were cross-sectional studies [28] , [29] ; The included studies were conducted in the United States, England, Italy, Israel, South Korea, and Turkey ( Table 1 ). Ten studies [24] , [26] , [27] , [28] , [29] , [30] , [35] , [37] , [38] , [39] were conducted in 2020 and only one [25] through 2020 to 2021. Four studies focused patients with asthma [29] , [35] , [38] , [39] , two [27] , [30] included only patients with COPD, and one study [25] included patients with chronic respiratory diseases.…”