[1] Hosp Royo Villanova, Dept Dermatol, Zaragoza, Spain
[2] Inst Ciencias Salud Aragon, Grp Invest Psicodermatol Aragon, Zaragoza, Spain
[3] Hosp Barbastro, Dept Dermatol, Barbastro, Spain
[4] Hosp Segovia, Dept Psiquiatria, Segovia, Spain
[5] Univ San Jorge, Dept Estadist, Zaragoza, Spain
[6] Univ Zaragoza, Dept Psicol, Zaragoza, Spain