[1] Dana Farber Canc Inst, Boston, MA USA
[2] Genentech Inc, South San Francisco, CA USA
[3] F Hoffmann La Roche Ltd, Basel, Switzerland
[4] Univ Hosp Erlangen, Dept Obstet & Gynecol, Erlangen, Germany
[5] Univ Hosp Seidman Canc Ctr, Cleveland, OH USA
[6] Massachusetts Gen Hosp, Boston, MA USA
[7] Winship Canc Inst, Atlanta, GA USA