Wang, D., Chen, K., Xiong, T., He, L., Ni, W. and Wang, H. 2023. Comparison of outcomes of percutaneous coronary intervention for chronic total occlusion in patients with and without prior bypass grafting: A systematic review and meta-analysis. Pakistan Journal of Medical Sciences. 39, 4 (Jun. 2023). DOI:https://doi.org/10.12669/pjms.39.4.7483.