?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S&rft.aulast=Ravindran&rft.au=Ravindran%2C+S&rft.date=2020&rft.atitle=The+development+and+impact+of+an+endoscopic+non-technical+skills+(ENTS)+behavioural+marker+system&rft.title=BMJ+Simulation+%26+Technology+Enhanced+Learning&rft.genre=article