1. Flo Health Inc., London, UK
2. Institute of Health Informatics, University College London, London, UK
3. Department of Psychology and Ergonomics, Technische Universitaet Berlin, Berlin, Germany
4. London School of Hygiene & Tropical Medicine, Maternal, Adolescent, Reproductive & Child Health (MARCH) Centre, London, UK
5. Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, USA