Velmurugan D, Ghosh P, Kurian AT. Effect of collagen on large traumatic perforation of tympanic membrane. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2022 Sep. 26 [cited 2025 Nov. 16];8(10):873-4. Available from: https://www.ijorl.com/index.php/ijorl/article/view/3670