Reply to F. Felix et al and M.F. Fay et al

Affiliations

• ¹ University Hospital Zurich, Zurich, Switzerland.
• ² European Organisation for Research and Treatment of Cancer Data Centre, Brussels, Belgium.
• ³ Aix-Marseille University, Marseille, France.
• ⁴ The University of Texas MD Anderson Cancer Center, Houston, TX.
• ⁵ University of Alabama at Birmingham, Birmingham, AL.
• ⁶ University of Heidelberg; German Cancer Research Center, Heidelberg, Germany.
• ⁷ NRG Oncology Statistics and Data Management Center, Philadelphia, PA.
• ⁸ University Hospital Lausanne, Lausanne, Switzerland.
• ⁹ University of California, Los Angeles, Los Angeles, CA.
• ¹⁰ Dana-Farber Cancer Institute, Boston, MA.
• ¹¹ University of Toronto, Toronto, Ontario, Canada.
• ¹² University of Maryland, Baltimore, MD.
• ¹³ University Hospital Zurich, Zurich, Switzerland michael.weller@usz.ch.