[1] Univ N Carolina, Dept Pathol & Lab Med, Chapel Hill, NC USA
[2] Univ N Carolina, McAllister Heart Inst, Chapel Hill, NC USA
[3] Univ Leeds, Leeds Inst Cardiovasc & Metab Med, Div Cardiovasc & Diabet Res, Leeds, W Yorkshire, England
[4] Univ Toronto, St Michaels Hosp, Canadian Blood Serv, Toronto, ON, Canada
[5] Univ Toronto, St Michaels Hosp, Dept Lab Med & Pathobiol, Toronto, ON, Canada
[6] Univ N Carolina, Dept Med, Chapel Hill, NC USA
[7] Univ Amsterdam, Acad Med Ctr, Dept Expt Vasc Med, NL-1105 AZ Amsterdam, Netherlands
[8] Sanquin Res, Dept Plasma Prot, Amsterdam, Netherlands