Kusurin, M., M. . Majnaric, D. Unic, D. Baric, R. . Blazekovic, J. Varvodic, and I. Rudez. “Comparison Between OPCABG and CABG Surgical Revascularization Using Transit Time Flow Measurement (TTFM)”. The Heart Surgery Forum, vol. 24, no. 6, Nov. 2021, pp. E963-E967, doi:10.1532/hsf.4265.