Avoiding thromboembolism and its sequelae the role of reviparin sodium ; LMWHs are not equal ; proceedings of a satellite symposium held in Eilat, June 17, 1995, as a part of the XVth congress of the International Society on Thrombosis and Hemostasis (ISTH), Jerusalem, Israel, June 11 - 16, 1995 (Pergamon, 1996)