[1] Univ Oxford, Dept Primary Care Hlth Sci, 23-38 Hythe Bridge St, Oxford OX1 2ET, England
[2] Inst Biomed Res IIB St Pau, Clin Epidemiol & Publ Hlth Dept, Iberoamer Cochrane Ctr, Barcelona 08041, Spain
[3] Lenox Hill Hosp, Dept Med, New York, NY USA
[4] New York Univ Sch Med, New York, NY USA
[5] Univ Florida, Div Internal Med, Gainesville, FL 32611 USA
[6] North Florida South Georgia Vet Hlth Syst, Gainesville, FL USA
[7] Klin Gais AG, Gais, Switzerland
[8] Aarhus Univ Hosp, Dept Cardiothorac & Vasc Surg, Aarhus, Denmark
[9] Aarhus Univ Hosp, Inst Clin Med, Aarhus, Denmark
[10] Univ Amsterdam, Acad Med Ctr, Dept Cardiopulm Surg, Amsterdam, Netherlands
[11] VA Cooperat Studies Program Coordinating Ctr, Palo Alto, CA USA
[12] Univ Birmingham, Med Sch Birmingham, Dept Primary Hlth Care & Gen Pract, Birmingham B15 2TT, W Midlands, England
[13] Univ Antwerp Hosp, Dept Haematol, Edegem, Belgium
[14] Univ Oxford, John Radcliffe Hosp, Nuffield Dept Obstet & Gynaecol, Oxford, England
[15] Loma Linda Univ, Res & Dev Serv, Jerry L Pettis VA Med Ctr, Loma Linda, CA 92350 USA
[16] Loma Linda Univ, Dept Internal Med, Loma Linda, CA 92350 USA
[17] Henry Ford Hosp, Dept Internal Med, Detroit, MI USA
[18] Univ Newcastle, Inst Cell Med, Newcastle, NSW 2308, Australia
[19] Anticoagulation Europe, Kent, OH USA
[20] Heart & Diabet Ctr N Rhine Westphalia, Inst Appl Telemedicine, Bad Oeynhausen, Germany
[21] Duke Ctr Clin Hlth Policy Research, Durham, NC USA
[22] Duke Univ, Med Ctr, Dept Internal Med, Div Gen Internal Med, Durham, NC USA
[23] Duke NUS Grad Med Sch, Program Hlth Serv & Syst Res, Singapore, Singapore
[24] Hosp Santa Creu & Sant Pau, Unidad Hemostasis & Trombosis, Barcelona, Spain
[25] Joanneum Res Forschungsgesell MBH, Inst Biomed & Hlth Sci, Graz, Austria
[26] ISMAAP, Geneva, Switzerland
[27] Goethe Univ Frankfurt, Inst Gen Practice, D-60590 Frankfurt, Germany
[28] Univ British Columbia, Fac Pharmaceut Sci, Vancouver, BC, Canada
[29] Univ British Columbia, Fac Med, Vancouver, BC, Canada
[30] Univ British Columbia, Vancouver Gen Hosp, Vancouver, BC, Canada
[31] Univ Potsdam, Rehabil Res Ctr, Potsdam, Germany
[32] Ruhr Univ Bochum, Dept Thorac & Cardiovasc Surg, Bad Oeynhausen, Germany
[33] Ruhr Univ Bochum, Heart & Diabet Ctr N Rhine Westphalia, Bad Oeynhausen, Germany