[1] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[2] Mayo Clin, Dept Pathol, Scottsdale, AZ USA
[3] Harvard Univ, Sch Med, Boston, MA USA
[4] Siriraj Hosp Mahidol Univ, Dept Pathol, Bangkok, Thailand
[5] St Boniface Gen Hosp, Dept Pathol, Winnipeg, MB R2H 2A6, Canada