DIAGNOSTIC ACCURACY OF IMMUNOHISTOCHEMISTRY FOR DIAGNOSIS OF HELICOBACTER PYLORI INFECTION IN GASTRIC BIOPSIES RECEIVED IN SIR GANGARAM HOSPITAL LAHORE. RMSR [Internet]. 2025 Jan. 6 [cited 2025 Jan. 15];3(1):191-6. Available from: http://thermsr.com/index.php/Journal/article/view/354