%0 Journal Article %T Alternative Agents to Prevent Fogging in Head and Neck Endoscopy %A Patorn Piromchai %A Pornthep Kasemsiri %A Sanguansak Thanaviratananich %J Clinical Medicine Insights: Ear, Nose and Throat %D 2011 %I %U http://www.la-press.com/alternative-agents-to-prevent-fogging-in-head-and-neck-endoscopy-a2428