Ductal carcinoma arising from syringocystadenoma papilliferum in the external auditory canal. |
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Authors: | Rodney C Diaz Seilesh C Babu |
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Affiliation: | Department of Otolaryngology-Head and Neck Surgery, University of California Davis Medical Center, Sacramento, California 95817, USA. rcdiaz@ucdavis.edu |
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