[1] Duke Clin Res Inst, Durham, NC USA
[2] Duke Univ, Med Ctr, Durham, NC USA
[3] Canadian VIGOUR Ctr, Edmonton, AB, Canada
[4] Univ Alberta, Edmonton, AB, Canada
[5] Glasgow Cardiovasc Res Ctr, Glasgow, Lanark, Scotland
[6] Univ Glasgow, Glasgow, Lanark, Scotland
[7] Cleveland Clin, Cleveland, OH 44106 USA
[8] Univ Med Ctr Groningen, NL-9713 AV Groningen, Netherlands
[9] Duke Translat Med Inst, Durham, NC USA