IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-4-41674 Original Research Paper Predicting the subjective hearing outcome in type I tympanoplasty using Belfast 15/30db rule of thumb. Priyanshi Gupta Dr. Dr. Monika Bansal Dr. Dr. Kanika Sharma Dr. April 2022 11 4 01 02