AUTHOR=Porcari Aldostefano , Sinagra Gianfranco , Quarta Cristina Candida , Fontana Marianna , Gillmore Julian D. TITLE=Final farewell to Claudio Rapezzi: observation, deduction and knowledge in medicine JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=10 YEAR=2023 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2023.1221983 DOI=10.3389/fcvm.2023.1221983 ISSN=2297-055X