1. MRC Centre for Reproductive Health; The Queen's Medical Research Institute; University of Edinburgh; Edinburgh UK
2. Diabetes Trials Unit; Endocrinology and Metabolism; Oxford Centre for Diabetes; Oxford UK
3. Department of Medical Biochemistry and Institute for Infectious Diseases and Molecular Medicine; University of Cape Town; Observatory South Africa
4. Endocrine Research Unit; Center for Translational Science Activities; Mayo Clinic; Rochester MN USA
5. Department of Physiology; School of Biomedical Sciences; Monash University; Clayton Victoria Australia
6. Mammal Research Institute and Centre for Neuroendocrinology; University of Pretoria; Pretoria South Africa