COR Milestones Established in 1994, COR is an outgrowth of The Worcester Deep Vein Thrombosis Study, which was funded by the National Institutes of Health from 1986-1991. 1994 The Hip Registry is established through an unrestricted educational grant from Rhône-Poulenc Rorer, Inc. 1995 Total knee replacement added to create the Hip & Knee Registry (THKR) THKR enrolls 500 surgeons 1996 The ALS Patient Care Database is established. THKR enrolls 5,000 patients 1997 The Glioma Outcomes (GO) Project is established THKR enrolls 10,000 patients and 1,000 surgeons ALS enrolls 90 clinics and 1,000 patients 1999 The GRACE program is established THKR enrolls 20,000 patients ALS enrolls 3,000 patients 2000 COR is certified as a performance measurement system by the Joint Commission on Accreditation of Health Organizations THKR enrolls 30,000 patients GO enrolls 788 patients at 52 sites GRACE enrolls 10,000 patients 2001 GLORY - The Global Orthopaedic Registry is launched ALS enrolls 4,000 patients GRACE enrolls 20,000 patients 2002 IMPROVE - International Medical Prevention Registry on Venous Thromboembolism is launched GRACE enrolls 40,000 patients from 17 countries 2003 GLORY enrolls 3,000 THA and 4,000 TKA cases from 11 countries IMPROVE enrolls 1,500 patients from 10 countries ALS enrolls over 5,000 patients from more than 100 sites