1. Imperial College London; Global eHealth Unit, Department of Primary Care and Public Health, School of Public Health; St Dunstans Road London Hammersmith UK W6 8RP
2. Stetson University; Integrative Health Science; 421 N Woodland Blvd Unit 8317 DeLand Florida USA 32723
3. School of Public Health, Imperial College London; Global eHealth Unit, Department of Primary Care and Public Health; St Dunstans Road London UK W6 8RP
4. Imperial College London; Department of Primary Care and Public Health; The Reynolds Building, Charing Cross Campus St Dunstan's Road London UK W6 8RP