Microsurgery training during COVID‐19 pandemic: Practical recommendations from the International Society for Experimental Microsurgery and International Microsurgery Simulation Society. Issue 4 (19th February 2021) - Oltean, Mihai; Nistor, Alexandru; Hellström, Mats; Axelsson, Michael; Yagi, Shintaro; Kobayashi, Eiji; Ballestin, Alberto; Akelina, Yelena; Nemeth, Norbert