[1] Harvard Univ, Sch Med, Massachusetts Gen Hosp, Dept Pathol & Lab Med, Boston, MA 02115 USA
[2] Eli Lilly & Co, Indianapolis, IN 46285 USA
[3] Univ Washington, Harborview Med Ctr, Dept Lab Med, Seattle, WA 98195 USA
[4] Univ Kansas, Med Ctr, Dept Pathol, Kansas City, MO USA
[5] Maine Med Ctr, Dept Pathol, Portland, ME 04102 USA
[6] Univ Texas, Hlth Sci Ctr, Dept Pathol, San Antonio, TX 78285 USA
[7] Cleveland Clin Fdn, Dept Clin Pathol, Cleveland, OH 44195 USA