“…Included trials (Angulo et al, 2000; Fallah Huseini et al, 2005; Fathalah et al, 2017; Ferenci et al, 1989; Kim, Kim, et al, 2016; Lucena et al, 2002; Nouri‐Vaskeh, Afshan, et al, 2020; Nouri‐Vaskeh, Malek Mahdavi, et al, 2020; Parés et al, 1998; Velussi et al, 1993; Velussi et al, 1997) were conducted from 1989 to 2020. Ten studies were in English (Angulo et al, 2000; Fathalah et al, 2017; Ferenci et al, 1989; Kim, Kim, et al, 2016; Lucena et al, 2002; Nouri‐Vaskeh, Afshan, et al, 2020; Nouri‐Vaskeh, Malek Mahdavi, et al, 2020; Parés et al, 1998; Velussi et al, 1993; Velussi et al, 1997) and one was in Persian language (Fallah Huseini et al, 2005). Among these studies, Kim et al's study had the smallest sample size ( n = 4) (Kim, Kim, et al, 2016) and Parés et al's study (Parés et al, 1998) had the largest sample size ( n = 200); the total sample size of the 11 articles combined was 735 patients.…”