In a hospital-based study of non-Hispanic whites , we genotyped CASP8 -652 6N del and 302H variants in 1,023 patients with squamous cell carcinoma of the head and neck ( SCCHN ) and 1,052 cancer-free controls .
O O O O O O O O O O B-GeneOrGeneProduct B-SequenceVariant I-SequenceVariant I-SequenceVariant O B-SequenceVariant O O O B-OrganismTaxon O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O B-DiseaseOrPhenotypicFeature O O O O O O