1. Clinical Biochemist, retired , Chiltern House , Bury St Edmunds , Suffolk , UK
2. Department of Clinical Chemistry and Laboratory Medicine , Leiden University Medical Centre , Leiden , The Netherlands
3. Department of Chemical Pathology , Prince of Wales Hospital , New South Wales Health Pathology , Sydney , Australia
4. Department of Investigative Endocrinology , St. Vincent’s University Hospital , Elm Park 4 , Dublin , Ireland