[1] Univ Complutense Madrid, Fac Nursing Physiotherapy & Podol, Dept Nursing, Plaza Ramon Y Cajal S-N, Madrid 28007, Spain
[2] Inst Invest Sanitaria Gregorio Maranon IiSGM, Res Nursing Grp, Calle Dr Esquerdo 46, Madrid 28007, Spain
[3] Autonomous Univ Madrid, Red Cross Univ, Coll Nursing, Spanish Red Cross, Ave Reina Victoria 28, Madrid 28003, Spain