Sarfraz, Tariq, et al. “HIGHER FREQUENCY OF CHOLELITHIASIS IN EOSINOPHILIC CHOLECYSTITIS – AN UNUSUAL FINDING: Cholelithiasis in Eosinophilic Cholecystitis”. Pakistan Armed Forces Medical Journal, vol. 65, no. 5, Oct. 2015, pp. 679-81, https://www.pafmj.org/PAFMJ/article/view/1101.