About the Authors

Cindy Irwin

Contributed equally to this work with: Cindy Irwin, Mari van Reenen

Affiliation Centre for Human Metabolomics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa

Mari van Reenen

Contributed equally to this work with: Cindy Irwin, Mari van Reenen

Affiliations Centre for Human Metabolomics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa, Department of Statistics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa

Shayne Mason

Affiliation Centre for Human Metabolomics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa

Lodewyk J. Mienie

Affiliation Centre for Human Metabolomics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa

Johan A. Westerhuis

Affiliations Department of Statistics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa, Biosystems Data Analysis, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands

Carolus J. Reinecke

carools.reinecke@nwu.ac.za

Affiliation Centre for Human Metabolomics, Faculty of Natural Sciences, North-West University (Potchefstroom Campus), Potchefstroom, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: CJR JAW. Data curation: CI SM MvR JAW. Formal analysis: CI SM. Funding acquisition: CJR. Investigation: CI SM. Methodology: CJR JAW. Project administration: CJR JAW. Software: JAW MvR. Supervision: CJR JAW. Writing – original draft: CI MvR SM LJM JAW CJR. Writing – review & editing: CI MvR SM LJM JAW CJR.