IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-13-1-54439 Original Research Paper Association Of Periprocedural Haemoglobin Reduction And Myocardial Injury In Patients With Unstable Angina Undergoing Percutaneous Coronary Intervention Sushil Kumar Bagchi Dr. Dr Sharifun Nahar Dr. Dr Sanjib Chowdhury Dr. January 2024 13 1 01 02