Reintroduction of elective cardiac interventions in the era of COVID-19: the Barts experience oleh Anthony Mathur, Andreas Baumbach, Oliver Guttmann, Dan Jones, Katrina Comer, Jonathan Lambourne, Michael Mullen, Stephen Hamshere, Fizzah Choudhry, Krishna Rathod, Gordon Mills, Gordon Ferguson, Majid Akhtar, Mick Ozkor, Elliot Smith