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We have investigated the possible involvement of MDM2 and WAF1 gene alterations in the development of nasopharyngeal carcinoma (NPC). MDM2 and WAF1 were analysed in 46 primary NPCs by Southern blot analysis. Forty-five tumours showed a normal EcoRI hybridisation pattern and hybridisation intensity with a human MDM2 cDNA probe. One tumour had more intense normal size MDM2 hybridising bands. Densitometric...
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