[1] Univ Calif Los Angeles, David Geffen Sch Med, Dept Pathol & Lab Med, Los Angeles, CA 90095 USA
[2] Cedars Sinai Med Ctr, Dept Pathol & Lab Med, Los Angeles, CA 90048 USA
[3] Mayo Clin, Dept Lab Med & Pathol, Rochester, MN 55905 USA
[4] Cincinnati Childrens Hosp Med Ctr, Dept Pathol & Lab Med, Cincinnati, OH 45229 USA
[5] Univ Calif San Francisco, Med Ctr, Dept Pathol, San Francisco, CA 94143 USA
[6] Johns Hopkins Univ, Sch Med, Dept Pathol, Baltimore, MD 21287 USA
[7] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Dept Pathol, Boston, MA 02114 USA
[8] Cleveland Clin, Dept Anat Pathol, Cleveland, OH 44195 USA
[9] Univ Rochester, Med Ctr, Dept Pathol & Lab Med, Rochester, NY 14642 USA