Sahu PK, Bothra J, Goyal L. An unusual case of recurrent retropharyngeal abscess with incidental oesophageal fistula. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2022 Mar. 24 [cited 2025 Nov. 16];8(4):424-7. Available from: https://www.ijorl.com/index.php/ijorl/article/view/3485