Poonam K. Saidha, et al. “Determination of the Role of Middle Ear Risk Index As a Prognostic Tool in Cases of Chronic Suppurative Otitis Media Treated by Tympanoplasty ”. Highlights on Medicine and Medical Science Vol. 13, July 2021, pp. 27-34, doi:10.9734/bpi/hmms/v13/2988F.