Kamal, S. S. “Transcanal Endoscopic Antrostomy Hole : Its Utility in Restoring Ventilation Pathway to Epitympanum and Mastoid Antrum During Tympanoplasty”. Bangladesh Journal of Endosurgery, vol. 2, no. 1, July 2014, pp. 9-14, doi:10.3329/bje.v2i1.19588.