Hollstein, M C Amplification of epidermal growth factor receptor gene but no evidence of ras mutations in primary human esophageal cancers. [electronic resource] - Cancer research Sep 1988 - 5119-23 p. digital Publication Type: Journal Article ISSN: 0008-5472 Subjects--Topical Terms: DNA, Neoplasm--analysisErbB Receptors--geneticsEsophageal Neoplasms--geneticsGene AmplificationGene Expression RegulationGenes, rasHumansNucleic Acid HybridizationProto-Oncogene MasProto-Oncogenes