@misc{indiciaeba4f98b3a417, title = {Pyriform sinus fistula.}, author = {Rishavdeb Patra and A Chattopadhyay and Vijaykumar and M Yoga Nagendhar and P L N G Rao}, year = {2002}, doi = {10.1007/bf02723718}, url = {https://pubmed.ncbi.nlm.nih.gov/12450303/}, note = {Source identifier: 12450303} }