[1] Lviv Reg Canc Ctr, Dept Surg, UA-79031 Lvov, Ukraine
[2] Evanston NW Healthcare, Evanston, IL USA
[3] Northwestern Univ, Feinberg Sch Med, Evanston, IL USA
[4] Univ Washington, Dept Surg, Seattle, WA 98195 USA
[5] Fred Hutchinson Canc Res Ctr, Div Publ Hlth Serv, Seattle, WA 98104 USA
[6] Natl Oncol Inst, Havana, Cuba
[7] Univ Texas MD Anderson Canc Ctr, Dept Breast Med Oncol, Houston, TX 77030 USA
[8] Orange Coast Mem Med Ctr, Dept Pathol, Fountain Valley, CA USA
[9] Univ Calif San Francisco, Dept Pathol, San Francisco, CA USA
[10] Int Union Against Canc, Geneva, Switzerland
[11] Reg Canc Ctr, Montpellier, France
[12] Univ Hosp N Norway, Dept Pathol, Tromso, Norway