- Department of Cardio-Thoracic Surgery, St Olav’s University Hospital, Trondheim, Norway - Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway 
Corresponding author. Department of Cardio-Thoracic Surgery, St Olav’s University Hospital, Norway Prinsesse Kristinas gate 3, 7006 Trondheim, Norway. Tel: +47-728-26858; e-mail: [email protected] (A. Wahba)
This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)