Abdulkarim Munif Alotaibi, “EFFICIENCY OF ULTRASONOGRAPHY IN DIAGNOSIS OF CHOLECYSTITIS, AND OBSTRUCTED JAUNDICE”, J Popl Ther Clin Pharmacol, vol. 29, no. 01, pp. 319–323, Feb. 2022, doi: 10.53555/jptcp.v29i01.4647.