No abstract available
MeSH terms
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Adenocarcinoma / drug therapy*
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Adenocarcinoma / genetics
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Aged, 80 and over
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Antineoplastic Agents / therapeutic use*
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Base Sequence
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DNA Mutational Analysis
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ErbB Receptors / genetics*
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Gefitinib
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Genes, erbB-1
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Humans
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Lung Neoplasms / drug therapy*
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Lung Neoplasms / genetics
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Male
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Mutation
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Quinazolines / therapeutic use*
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Salvage Therapy / methods
Substances
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Antineoplastic Agents
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Quinazolines
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ErbB Receptors
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Gefitinib