1. Mejorada del Campo Health Centre, Community of Madrid Health Service (SERMAS), 28840 Madrid, Spain
2. Research Group MISKC, Department of Computer Science, University of Alcala, Polytechnic Building, University Campus, Barcelona Road Km. 33.6, 28805 Alcalá de Henares, Spain
3. Santa Cristina University Hospital, Community of Madrid Health Service (SERMAS), 28009 Madrid, Spain
4. Meco Health Centre, Community of Madrid Health Service (SERMAS), 28880 Madrid, Spain
5. Illustrious Official College of Nursing of Madrid, Av. de Menéndez Pelayo, 93, Retiro, 28007 Madrid, Spain
6. Computer Science Department, University of Alcala, 28805 Madrid, Spain