1. Bioengineering and Telemedicine Centre, Universidad Politécnica de Madrid, Spain
2. CIBER-BBN: Networking Research Centre for Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
3. Endocrinology and Nutrition Department Parc Tauli Sabadell University Hospital, Sabadell, Spain
4. Department of Information Systems Engineering, Ben Gurion University of the Negev, Beer-Sheva, Israel
5. Department of Information Systems, University of Haifa, Haifa, Israel
6. MobiHealth B.V., Enschede, Netherlands