Corrigendum: Three-Month follow-up of heterologous vs. homologous third SARS-CoV-2 vaccination in kidney transplant recipients: Secondary analysis of a randomized controlled trial - Andreas Heinzel; Eva Schrezenmeier; Florina Regele; Karin Hu; Lukas Raab; Michael Eder; Christof Aigner; Rhea Jabbour; Constantin Aschauer; Ana-Luisa Stefanski; Thomas Dörner; Klemens Budde; et al. (Frontiers in Medicine, 2022)