1. PhD Program in Medical and Pharmaceutical Sciences, Development and Quality of Life, University of La Laguna, Santa Cruz de Tenerife, Spain
2. School of Nursing, University of Costa Rica, San José, Costa Rica
3. Department of Nursing, University of La Laguna, Santa Cruz de Tenerife, Spain
4. La Palma Health Area, Canarian Health Service, Santa Cruz de Tenerife, Spain