IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-7-35806 Original Research Paper Diagnostic Significance Of serum CA242, CA19.9 and CEA in Diagnosis of Gall Bladder Cancer Prakash Dr. Rekha Kumari Dr. Sweta Kumari Dr. July 2021 10 7 01 02 ABSTRACT