Chowdhury, A., & Das, S. (2021). An observational study of endoscopic versus microscopic type I tympanoplasty in tubotympanic chronic otitis media in a tertiary health care centre. International Journal of Otorhinolaryngology and Head and Neck Surgery, 7(3), 434–439. https://doi.org/10.18203/issn.2454-5929.ijohns20210536