1 Department of Medicine and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520-8028, USA. Electronic address: barbara.burtness@yale.edu.
2 Biostatistics and Research Decision Sciences, Merck & Co., Kenilworth, NJ, USA.
3 The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, National Institute of Health Research Biomedical Research Centre, London, UK.
4 Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; University of Melbourne, Melbourne, VIC, Australia.