...
bcr_patient_barcode,age_at_initial_pathologic_diagnosis,days_to_birth,days_to_death,days_to_form_completion,days_to_initial_pathologic_diagnosis,
days_to_last_followup,days_to_last_known_alive,distant_metastasis_pathologic_spread,drugs,eastern_cancer_oncology_group,erythrocyte_sedimentation_rate_result,
gender,hemoglobin_result,histological_type,informed_consent_verified,karnofsky_performance_score,lactate_dehydrogenase_result,laterality,
lymphnode_pathologic_spread,lymphnodes_examined_prior_presentation,number_of_lymphnodes_examined,number_of_lymphnodes_positive,performance_status_scale_timing,
person_neoplasm_cancer_status,platelet_qualitative_result,pretreatment_history,primary_tumor_pathologic_spread,prior_diagnosis,radiations,serum_calcium_result,
tumor_grade,tumor_stage,tumor_tissue_site,vital_status,white_cell_count_result,year_of_initial_pathologic_diagnosis
...