1 Department of Upper Gastrointestinal and Thoracic Surgery, Montreal General Hospital, McGill University Health Centre, Montreal, QC H3G 1A4, Canada.
2 Department of Surgery, Imperial College London, London, UK; Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden; Nuffield Department of Surgery, Oxford University, Oxford, UK.
3 Department of Surgery, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.
4 Department of Upper Gastrointestinal and Thoracic Surgery, Montreal General Hospital, McGill University Health Centre, Montreal, QC H3G 1A4, Canada. Electronic address: jonathan.cools-lartigue@mcgill.ca.