[1] US Natl Canc Inst, Womens Canc Sect, Mol Pharmacol Lab, Ctr Canc Res, Bethesda, MD USA
[2] Univ Freiburg Med Ctr, Dept Gen & Visceral Surg, Ctr Comprehens Canc, Freiburg, Germany
[3] Univ Freiburg Med Ctr, BIOSS Ctr Biol Signalling Studies, Freiburg, Germany
[4] Univ Calif San Francisco, Dept Anat, San Francisco, CA USA