M. U. Rafique, Q. Rubnawaz, A. H. Khan, and M. S. Akhtar, “Vascular Reactivity during Cardiopulmonary Bypass in Patients at Punjab Institute of Cardiology and Shalamar Hospital Lahore, Pakistan”, Int J Front Sci, vol. 1, no. 1, pp. 12–18`, Jan. 2017, doi: 10.37978/tijfs.v1i1.11.