Quality Improvement in Vascular Surgery: The Role of Comparative Audit and Vascunet. Issue 1 (January 2015) - Vascunet Collaboration; Mitchell, D.; Venermo, M.; Mani, K.; Bjorck, M.; Troeng, T.; Debus, S.; Szeberin, Z.; Hansen, A.K.; Beiles, B.; Setacci, C.; Bergqvist, D.; et al.