[1] Univ Cambridge, Cambridge, England
[2] Med Univ Innsbruck, Innsbruck, Austria
[3] Univ Glasgow, Glasgow, Lanark, Scotland
[4] Peking Univ, Beijing, Peoples R China
[5] Brigham & Womens Hosp, 75 Francis St, Boston, MA 02115 USA
[6] Harvard Med Sch, Boston, MA 02115 USA
[7] Univ Alabama Birmingham, Birmingham, AL 35487 USA
[8] Leiden Univ, Med Ctr, Leiden, Netherlands
[9] Michael E DeBakey Baylor Coll Med, Houston, TX 77030 USA
[10] Houston Methodist DeBakey Heart & Vasc Ctr, Houston, TX 77030 USA
[11] Odense Univ Hosp, Odense, Denmark
[12] Queens Univ Belfast, Belfast, Antrim, North Ireland
[13] Uppsala Univ, Uppsala, Sweden
[14] Natl Inst Hlth & Welf, Helsinki, Finland
[15] NIH, Bldg 10, Bethesda, MD 20892 USA
[16] Univ Eastern Finland, Kuopio, Finland
[17] Erasmus MC, Rotterdam, Netherlands
[18] Kyushu Univ, Fukuoka, Japan
[19] UCL, Farr Inst Hlth Informat, London, England
[20] Univ Calif San Diego, San Diego, CA 92103 USA
[21] Univ Copenhagen, Copenhagen, Denmark
[22] Herlev Hosp, Copenhagen, Denmark
[23] Copenhagen Univ Hosp, Glostrup, Denmark
[24] Konventhosp Barmherzige Bruder, Linz, Austria
[25] Univ Roma La Sapienza, Rome, Italy
[26] Ist Ricovero & Cura Carattere Sci Neuromed, Pozzilli, Italy
[27] Harokopio Univ Athens, Athens, Greece
[28] Univ Texas Southwestern Med Sch, Dallas, TX 75390 USA
[29] Univ Klinikum Regensburg, Regensburg, Germany
[30] Klinikum St Marien, Amberg, Germany
[31] Albert Einstein Coll Med, Bronx, NY 10467 USA
[32] Metab Analyt Serv, Helsinki, Finland
[33] UCL, London, England
[34] Univ Groningen, Univ Med Ctr Groningen, Groningen, Netherlands
[35] Umea Univ, Umea, Sweden
[36] Res Ctr Prevent & Hlth, Glostrup, Denmark
[37] Malmo Univ Hosp, Malmo, Sweden
[38] Baylor Coll Med, Houston, TX 77030 USA
[39] Univ Maryland, Sch Med, Baltimore, MD 21201 USA
[40] Univ Vermont, Burlington, VT 05405 USA
[41] Univ N Carolina, Chapel Hill, NC 27514 USA
[42] Icelandic Heart Assoc, Kopavogur, Iceland
[43] Univ Iceland, Reykjavik, Iceland
[44] Univ Glasgow, Glasgow, Lanark, Scotland