[1] Univ Hosp Cologne, Dept Internal Med 1, Cologne, Germany
[2] Univ Hosp Cologne, GHSG, Cologne, Germany
[3] Millennium Pharmaceut Inc, Cambridge, MA USA
[4] Pharmerit Int, Bethesda, MD USA
[5] Med Data Analyt, Parsippany, NJ USA
[6] Univ Manchester, Inst Canc Sci, Christie Hosp, Manchester, Lancs, England