“…Ten of the 12 included studies used US to assess laryngeal function and/or structure (Friedman et al, 2018(Friedman et al, , 2019Garcia-Torres et al, 2020;Huang et al, 2019;Lee et al, 2018;Ongkasuwan et al, 2017aOngkasuwan et al, , 2017bSayyid et al, 2019;Shaath et al, 2012;Zhang et al, 2020). Nine studies assessed laryngeal function, of which seven assessed vocal fold movement through visualisation (Friedman et al, 2019;Garcia-Torres et al, 2020;Lee et al, 2018;Ongkasuwan et al, 2017a;Sayyid et al, 2019;Shaath et al, 2012;Zhang et al, 2020). Of the seven studies looking at vocal fold movement, two studies additionally identified arytenoid tissue prolapse and aryepiglottic fold movement by viewing movement of the arytenoids and aryepiglottic folds for ab/adduction and inward collapse on inspiration during breathing (Friedman et al, 2018(Friedman et al, , 2019.…”