ULTRASONIC EVALUATION OF CHOLELITHIASIS AND CHOLECYSTITIS: A COMPARATIVE STUDY BETWEEN MALE AND FEMALE PATIENTS AT DISTRICT HEADQUARTER HOSPITAL, DERA ISMAIL KHAN. FMHR. 2025;3(4):325-330. Accessed September 14, 2026. https://fmhr.net/index.php/fmhr/article/view/410