Khair, S.M. et al. 2025. Standardizing Invasive Provocation Testing for Vasospastic Angina: A Systematic Review of Diagnostic Protocols and Clinical Practice. Indus Journal of Bioscience Research. 3, 1 (Jan. 2025), 632–638. DOI:https://doi.org/10.70749/ijbr.v3i1.557.