1. University of Exeter Medical School; Institute of Health Research; Veysey Building, Salmon Pool Lane Exeter UK EX2 4SG
2. University of Melbourne; Department of Psychiatry; St Vincent's Hospital Melbourne Victoria Australia VIC 3000
3. Aurora Sinai/Aurora St. Luke's Medical Center; University of Wisconsin School of Medicine & Public Health and Aurora Cardiovascular Services; Milwaukee Wisconsin USA
4. Copenhagen University Hospital, Rigshospitalet; Department of Cardiology, The Heart Centre; Blegsdamsvej 9 Copenhagen Denmark 2100
5. Warwick Medical School, University of Warwick; Division of Health Sciences; Coventry UK CV4 7AL
6. University College London; Farr Institute of Health Informatics Research; 222 Euston Road London UK NW1 2DA
7. University of Southern Denmark; National Institute of Public Health; Copenhagen Denmark