[1] Univ Hosp Geneva, Dept Pathol, Geneva, Switzerland
[2] Univ Cattolica Sacro Cuore, Agostino Gemelli Sch Med, Div Anat Pathol & Histol, Rome, Italy
[3] McGill Univ, Dept Pathol, Montreal, PQ, Canada
[4] McGill Univ, Ctr Hlth, Montreal, PQ, Canada
[5] Hosp Univ Penn, Perelman Sch Med, Dept Pathol & Lab Med, Philadelphia, PA 19104 USA
[6] Johns Hopkins Sch Med, Dept Pathol, Baltimore, MD USA
[7] CHU Vaudois, Inst Pathol, Lausanne, Switzerland
[8] Guys & St Thomas NHS Fdn Trust, Dept Cellular Pathol, London, England
[9] Cochin Hosp, Dept Pathol, Paris, France
[10] Kuma Hosp, Dept Diagnost Pathol, Kobe, Hyogo, Japan
[11] Yonsei Univ, Gang Nam Severance Hosp, Dept Pathol, Seoul, South Korea
[12] Kinki Univ, Fac Med, Nara Hosp, Dept Pathol, Nara, Japan
[13] Brigham & Womens Hosp, Dept Pathol, Boston, MA 02115 USA
[14] Harvard Med Sch, Boston, MA USA
[15] Northwestern Univ, Feinberg Sch Med, Dept Pathol, Chicago, IL 60611 USA
[16] Northwestern Med, Chicago, IL USA
[17] Massachusetts Gen Hosp, Dept Surg, Boston, MA 02114 USA
[18] Lab Natl Sante, Dept Med, Dudelange, Luxembourg
[19] Massachusetts Gen Hosp, Dept Pathol, Boston, MA USA