1. Department of Health Sciences; Universidad Pública de Navarra; Pamplona Spain
2. Department of Health Sciences; Universidad Miguel Hernández de Elche; Elche (Alicante) Spain
3. Complejo Hospitalario de Navarra; Pamplona Spain
4. Hospital General Universitari d'Alacant; Alicante Spain
5. CEU Cardenal Herrera University; Elche Spain