ASSESSMENT OF DIAGNOSTIC ACCURACY OF TRANS-ABDOMINAL ULTRASOUND IN DIAGNOSIS OF CHOLEDOCHOLITHIASIS KEEPING MAGNETIC RESONANCE CHOLANGIO-PANCREATOGRAPHY AS GOLD-STANDARD. RMSR. 2025;3(7):161-167. Accessed July 17, 2025. http://www.thermsr.com/index.php/Journal/article/view/1450