1. Department of Laboratory Medicine and The Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Canada
2. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
3. Biometric Research Branch, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
4. HAS-SE “Lendulet” Hereditary Endocrine Tumors Research Group, Hungarian Academy of Sciences, Hungary