Citation:
M. Maltoni, A. Caraceni, C. Brunelli, B. Broeckaert, N.A. Christakis, S. Eychmueller, P. Glare, M. Nabal, A. Viganò, P. Larkin, F. De Conno, G. Hanks, and S. Kaasa, "Prognostic Factors in Advanced Cancer Patients: Evidence-Based Clinical Recommendations" Journal of Clinical Oncology, 23(25): 6240-6248 (September 2005)