Medical education challenges and innovations during COVID-19 pandemic - Papapanou, Michail; Routsi, Eleni; Tsamakis,Konstantinos; Fotis, Lampros; Marinos, Georgios; Lidoriki, Irene; Karamanou, Marianna; Papaioannou, Theodore G; Tsiptsios,Dimitrios; Smyrnis, Nikolaos; Rizos,Emmanouil; Schizas, Dimitrios (Postgraduate Medical Journal, 2021)