Professor Colleen Aldous is a medical researcher in South Africa, her main work in addition to her own research is supervision of clinical doctors who are undertaking research. Link to original paper,
https://www.researchgate.net/publication/378624193_Wheel_Replacing_Pyramid_Better_Paradigm_Representing_Totality_of_Evidence-Based_Medicine
https://www.semanticscholar.org/paper/Wheel-Replacing-Pyramid%3A-Better-Paradigm-Totality-Aldous-Dancis/72f1d5b3bd735eae69de57de6f8588cb5819098a
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