Dimopoulou, D. Spyridis, N. Dasoula, F. Krepis, P. Eleftheriou, E. Liaska, M. Servos, G. Maritsi, D. Tsolia, M., Pericarditis as the main clinical manifestation of covid-19 in adolescents, The Pediatric Infectious Disease Journal, E197-E199, 2021, Lippincott Williams and Wilkins, 0891-3668, 1532-0987