Pappa, V. Bouchla, A. Terpos, E. Thomopoulos, T.P. Rosati, M. Stellas, D. Antoniadou, A. Mentis, A. Papageorgiou, S.G. Politou, M. Kotanidou, A. Kalomenidis, I. Poulakou, G. Jahaj, E. Korompoki, E. Grigoropoulou, S. Hu, X. Bear, J. Karaliota, S. Burns, R. Pagoni, M. Trontzas, I. Grouzi, E. Labropoulou, S. Stamoulis, K. Bamias, A. Tsiodras, S. Felber, B.K. Pavlakis, G.N. Dimopoulos, M.-A., A phase ii study on the use of convalescent plasma for the treatment of severe covid-19-a propensity score-matched control analysis, Microorganisms, (9), 2021, MDPI AG,