Bermúdez, M., Ramiro, M., Sierra, J. C., & Buela-Casal, G. (2013). Construction of a risk index of HIV infection and its relation to double morale and dyadic power in adolescents. Anales De Psicología Annals of Psychology, 29(3), 917–922. https://doi.org/10.6018/analesps.29.3.136931