“…General Electric's Vscan was exclusively used in 11 studies [31][32][33][34][35][36][37][38][39]41,43,49,51,53,54]. Two studies used the Acuson P10 (Siemens, [29,54]), two used the Philips Lumify [50,52], three used the Butterfly iQ [44,45,47], and one used the Ballater Medical 3-in-1 ultrasound probe (Ballater Medical, Edinburgh, UK) [46]. Four articles did not mention the brand of the portable ultrasound device used during the training process [30,40,42,48].…”