Koshy, J., M. Engel, H. Carrara, J. Brink, and P. Zilla. “Long Term Outcome and EuroSCORE II Validation in Native Valve Surgery for Active Infective Endocarditis in a South African Cohort”. SA Heart Journal, vol. 15, no. 2, July 2018, pp. 116-2, doi:10.24170/15-2-3045.