[1] Massachusetts Gen Hosp, Dept Med, Boston, MA 02114 USA
[2] Massachusetts Gen Hosp, Dept Cardiol, Boston, MA 02114 USA
[3] Massachusetts Gen Hosp, Dept Vasc Surg, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Endocrine Unit, Boston, MA 02114 USA
[5] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[6] Harvard Univ, Sch Med, Dept Med, Cambridge, MA 02138 USA
[7] Harvard Univ, Sch Med, Dept Pathol, Cambridge, MA 02138 USA