1. School of Medicine, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
2. Division of Cardiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
3. Division of Cardiovascular Diseases, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
4. Department of Cardiology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
5. Sarcoma Unit, The Institute of Cancer Research & The Royal Marsden Hospital, Fulham Road, SW3 6JJ, London, UK