{"denoms":[{"counts":[{"groupId":"OG000","value":"0"}],"units":"Participants"}],"groups":[{"description":"Erlotinib\n\nerlotinib hydrochloride\n\npemetrexed disodium\n\nquality-of-life assessment\n\nintensity-modulated radiation therapy","id":"OG000","title":"Erlotinib"}],"populationDescription":"Patients refused biopsy, so no data collected.","reportingStatus":"POSTED","timeFrame":"throughout study completion, up to 2 years","title":"Evaluation of Biomarkers","type":"SECONDARY"}