About the Authors

Ian Louis Ross

ian.ross@uct.ac.za

Affiliation Division of Endocrinology, Groote Schuur Hospital, Department of Medicine, University of Cape Town, Cape Town, South Africa

Naomi S. Levitt

Affiliation Division of Endocrinology, Groote Schuur Hospital, Department of Medicine, University of Cape Town, Cape Town, South Africa

Competing Interests

Co-author N.S. Levitt is a PLOS ONE Editorial Board Member. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Editorial assistance and scientific suggestions: NSL. Conceived and designed the experiments: ILR NSL. Performed the experiments: ILR. Analyzed the data: ILR NSL. Wrote the paper: ILR NSL.