Cluster 43: karnofsky performance status patients ecog higher days greater registration prior 
Cluster 199: kps karnofsky performance status score greater patients equal patient ecog 
Cluster 784: age years lansky karnofsky performance status patients scale children ecog 
Cluster 1015: status performance ecog karnofsky appendix occasional help care patients able 
Cluster 1152: old lansky years karnofsky performance score patients status younger individuals 
Cluster 1506: equal greater age years karnofsky performance status lansky ecog participants 
Cluster 2067: lansky score karnofsky performance years patients inclusion scores greater adults 
Cluster 2460: karnofsky ecog poor health rating index screening time false fancc