[1] Spanish Red Cross, Dept Nursing, Avda Reina Victoria 28, Madrid 28003, Spain
[2] Univ Europea, Dept Nursing, Calle Tajo S-N, Madrid 28670, Spain
[3] Hosp Univ La Paz, Nursing Div, Serv Madrileno Salud, Paseo Castellana 261, Madrid 28046, Spain
[4] Univ Rey Juan Carlos, Dept Physiotherapy Occupat Therapy Rehabil & Phys, Ave Atenas S-N, Madrid 28922, Spain