B. B. Sharma, S. Sharma, N. Bhardwaj, and M. R. Aziz, “Gastric lactobezoar - Ultrasound diagnosis: A case report”, Indian J Child Health, vol. 3, no. 4, pp. 353–355, Dec. 2016, doi: 10.32677/IJCH.2016.v03.i04.022.