1. Department of PhysiologyKarolinska InstitutetStockholmSweden
2. Department of Molecular MedicineKarolinska InstitutetDepartment of EndocrinologyKarolinska HospitalStockholmSweden
3. Department of Integrative Medical BiologySection for Histology and Cell BiologyUmeå UniversityUmeåSweden
4. Department of Physiology and PharmacologyStrathclyde Institute for Biomedical SciencesUniversity of StrathclydeGlasgowU.K.