[1] Beth Israel Deaconess Med Ctr, Div Infect Dis, Boston, MA 02215 USA
[2] Massachusetts Gen Hosp, Cardiac Surg Div, Boston, MA 02114 USA
[3] Massachusetts Gen Hosp, Dept Radiol, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[5] Harvard Univ, Sch Med, Dept Med, Boston, MA USA
[6] Harvard Univ, Sch Med, Dept Surg, Boston, MA 02115 USA
[7] Harvard Univ, Sch Med, Dept Radiol, Boston, MA 02115 USA
[8] Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA