Coronavirus disease 2019 pandemic in Greece, February 26 – May 3, 2020: The first wave. Issue 41 (May 2021) - Maltezou, Helena C.; Papadima, Kalliopi; Gkolfinopoulou, Kassiani; Ferentinos, George; Mouratidou, Elisavet; Andreopoulou, Anastasia; Pavli, Androula; Magaziotou, Ioanna; Georgakopoulou, Theano; Mellou, Kassiani; Vorou, Rengina; Antoniadou, Anastasia; et al.