PRODUCT SUPPLIER WEBSITE Bi-directional Doppler HADECO https://www.hadeco.co.jp Aortic Grafts, Thoraflex™ Terumo Aaortic http://www.terumoaortic.com/ Surgery Instruments & Retractors T.Koros http://www.korosusa.com/ Vascular access products Transonic https://www.transonic.com/