About the Authors

Michael Lever

michael.lever@otago.ac.nz.

Affiliations Canterbury Health Laboratories, Clinical Biochemistry Unit, Christchurch, New Zealand, Pathology Department, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

Peter M. George

Affiliations Canterbury Health Laboratories, Clinical Biochemistry Unit, Christchurch, New Zealand, Pathology Department, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

Wendy Atkinson

Affiliation Canterbury Health Laboratories, Clinical Biochemistry Unit, Christchurch, New Zealand

Jane L. Elmslie

Affiliation Canterbury Health Laboratories, Clinical Biochemistry Unit, Christchurch, New Zealand

Sandy Slow

Affiliations Canterbury Health Laboratories, Clinical Biochemistry Unit, Christchurch, New Zealand, Pathology Department, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

Sarah L. Molyneux

Affiliation Canterbury Health Laboratories, Clinical Biochemistry Unit, Christchurch, New Zealand

Richard W. Troughton

Affiliation Department of Medicine, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

A. Mark Richards

Affiliation Department of Medicine, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

Christopher M. Frampton

Affiliation Department of Medicine, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

Stephen T. Chambers

Affiliation Pathology Department, Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: STC SS AMR RWT PMG ML. Performed the experiments: WA JLE SLM SS ML. Analyzed the data: ML SS CMF. Contributed reagents/materials/analysis tools: WA JLE SLM CMF. Wrote the paper: ML SS SLM RWT AMR PMG JLE.