Ngoc, Doan, 		Quyet Thang, Tran, 		Cong Hoan, Tran, AND 		Van Sang, Nguyen.
" Value of Ultrasound in the Diagnosis of Cholecystitis" <em>VNU Journal of Science: Medical and Pharmaceutical Sciences</em> [Online], Volume 38 Number 3 (23 September 2022)