In response to the letter to the editor regarding: Rat model of chronic tympanic membrane perforation: Ventilation tube with mitomycin C and dexamethasone

Thanks for the opportunity to respond to Dr Lou's letter on our successfully animal model of chronic tympanic membrane perforation (TMP) in rats with ventilation tube (VT) insertion in conjunction with mitomycin C and dexamethasone (M/D) [1]. This letter will be the fifteenth to an Editor written by Lou within the last 15 months from February 2016 to May 2017, which are all alternatives from his own work [2–4]. The average frequency of one letter to Editor per month is too frequent not to be a concern of overly self-promoting.

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