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['Human papillomavirus type 16 E5 protein as a therapeutic target.', 'Retraction: Human papillomavirus type 16 e5 protein as a therapeutic target. Yonsei med j 2006;47(1):1-14.', 'Creative Commons Attribution-NonCommercial 3.0 Unported', 'Control of human papillomavirus type 11 origin of replication by the E2 family of transcription regulatory proteins.']