509898 ECOG PS Eastern Cooperative Oncology Group performance status 898 509900 ECOG-PS ECOG-performance status 10 509906 ECOG PS Eastern Cooperative Oncology Group 9 509899 ECOG PS ECOG performance score 2 509903 ECOG-PS Eastern Cancer Collaboration Group Physical Status 1 509905 ECOG-PS Eastern Oncology Collaborative Group Physical Status Assessment 1 509904 ECOG-PS Eastern Oncology Group Performance Status 1