Sah, B P, S T Chettri, J N. Prasad, P P Gupta, S P shah, D Paudel, and R K Jaiswal. 2015. “Foreign Body Stone in Oesophagus: A Unique Case”. Health Renaissance 12 (2):140-42. https://doi.org/10.3126/hren.v12i2.14120.