Hlongwane, S., Ngongoni, C. and Grobbelaar, S. S. (Saartjie) (2019) “A PATIENT-CENTRIC SIX-SIGMA DECISION SUPPORT SYSTEM FRAMEWORK FOR CONTINUOUS QUALITY IMPROVEMENT IN CLINICS”, The South African Journal of Industrial Engineering, 30(3), pp. 224–237. doi: 10.7166/30-3-2241.