[1] Peritoneal Malignancy Inst, Dept Pathol, Basingstoke, Hants, England
[2] Univ Caen Normandie, Serv Anat & Cytol Pathol, Caen, France
[3] Profess Pathol Serv PC, Columbia, SC USA
[4] Inst Gustave Roussy, Dept Biol & Pathol Med, Villejuif, France
[5] Royal London Hosp, Dept Histopathol, London, England
[6] Univ Mississippi, Med Ctr, Dept Pathol, Jackson, MS 39216 USA
[7] Univ Calgary, Calgary, AB, Canada
[8] Calgary Lab Serv, Calgary, AB, Canada
[9] Ctr Hosp Lyon Sud, Serv Anat Pathol, RENAPE, Pierre Benite, France
[10] IRCCS, Fdn Natl Canc Inst, Dept Pathol & Lab Med, Div Pathol 1, Milan, Italy
[11] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[12] Univ Pittsburgh, Med Ctr, Dept Pathol, Pittsburgh, PA USA
[13] UCL, Dept Pathol, London, England
[14] Natl Canc Inst, Frederick Natl Lab Canc Res, Rockville, MD USA
[15] Erasmus MC, Dept Pathol, Rotterdam, Netherlands
[16] Weill Cornell Med, Dept Pathol & Lab Med, New York, NY USA