“…Instead, over half (n = 14, 56%) focused on training those who had not used ultrasound before (28,30,31,36,38,41,42,(44)(45)(46)(47)(48)(49)51). Six (24%) of the studies did not comment on trainees' prior experience (34,37,39,40,50,52). Of the 10 (40%) studies where training had been developed by local teams (29-31, 36, 39, 40, 42, 44, 52, 53), nearly all (8, 80%) were in collaboration with overseas institutions (30,31,36,39,40,42,44,53).…”