CARRBORO, N.C.--(BUSINESS WIRE)--The International Society on Thrombosis and Haemostasis (ISTH) will host one of the world’s most significant clinical and basic scientific meetings on thrombosis, haemostasis, and vascular biology when it convenes its XXII Congress July 11-16. The ISTH meeting and exhibition is held every two years, and the 2009 event will be staged at the state-of-the-art Boston Convention and Exhibition Center.