Covid-19 - VR Strikes Back: innovative medical VR training. - Paul Zikas; Manos N. Kamarianakis; Ioanna Kartsonaki; Nick Lydatakis; Steve Kateros; Mike Kentros; Efstratios Geronikolakis; Giannis Evangelou; Achilles Apostolou; Paolo Alejandro Alejandro Catilo; George Papagiannakis (SIGGRAPH Immersive Pavilion, 2021)