1. Department of NeuroendocrinologyImperial College London Hammersmith Campus, Commonwealth Building, Du Cane Road London W12 ONN London UK
2. The William Harvey Research InstituteBart's and The LondonQueen Mary SMD Charterhouse Square London EC1M 6BQ UK
3. Department of Cell BiologyInstitut Cochin de Génétique Moléculaire 75014 Paris France