Sharma, P., Sidharth, .-., Singh, B., Singh, D. and Gupta, A. 2013. Comparative Study between Plain Radiography and Ultrasound Abdomen in Non Traumatic Surgical Acute Abdominal Conditions. Nepalese Journal of Radiology. 2, 2 (Mar. 2013), 20–27. DOI:https://doi.org/10.3126/njr.v2i2.7681.