1. Faculty of Psychology, Universidad Complutense de Madrid, Pozuelo de Alarcon, Spain
2. School of Health, University Institute of Sexology, Universidad Camilo Jose Cela, Villafranca del Castillo, Spain
3. Faculty of Psychology, Universidad Autónoma de Madrid, Pozuelo de Alarcon, Spain
4. Faculty of Health Sciences, Universidad Rey Juan Carlos, Alcorcon, Spain