Epidemiology of 7375 children and adolescents hospitalized with COVID-19 in Germany, reported via a prospective, nationwide surveillance study in 2020–2022 oleh Maren Doenhardt, Markus Hufnagel, Natalie Diffloth, Johannes Hübner, René Mauer, Dominik T. Schneider, Arne Simon, Tobias Tenenbaum, Andreas Trotter, Jakob Armann, Reinhard Berner, The DGPI COVID-19 working group