Hornung, C. A., C. T. Jones, N. A. Calvin-Naylor, J. Kerr, S. A. Sonstein, T. Hinkley, and V. L. Ellingrod. “Competency Indices to Assess the Knowledge, Skills and Abilities of Clinical Research Professionals”. International Journal of Clinical Trials, vol. 5, no. 1, Jan. 2018, pp. 46-53, doi:10.18203/2349-3259.ijct20180130.