Yang, X., H. Huang, H. Liu, Z.-Y. Zeng, and J. Zhang. “ Computed Tomography Imaging of Early Coronary Artery Lesions in Stable Individuals With Multiple Cardiovascular Risk Factors ”. Clinics, Vol. 70, no. 4, Apr. 2015, pp. 242-6, doi:10.6061/clinics/2015(04)04.