The authors apologise that upon publication the affiliation for Andrea Piccolini, Filippo Dagnino, Giovanni Lughezzani and Nicolò M Buffi and listed just Humanitas Research Hospital. The full and correct affiliation should be IRCCS Humanitas Research Hospital, Italy.
The publisher also apologises for the omission and has now added the * symbol next to Andrea Piccolini and Filippo Dagnino, linking to the footnote that denotes shared first authorship.
The article has since been updated.