Bagchi, Sushil Kumar, et al. “Association of Periprocedural Haemoglobin Reduction and Myocardial Injury in Patients With Unstable Angina Undergoing Percutaneous Coronary Intervention”. Journal of Cardiology and Cardiovascular Medicine, vol. 8, no. 3, Oct. 2023, pp. 137-41, doi:10.29328/journal.jccm.1001166.