[1] Univ Zaragoza, Hosp Univ Miguel Servet, Inst Invest Sanitaria Aragon, Dept Psiquiatria, Zaragoza, Spain
[2] Inst Invest Sanitaria Aragon, Unidad Invest Atenc Primaria, Zaragoza, Spain
[3] Hosp Univ Canarias, Serv Dermatol, Santa Cruz De Tenerife, Spain
[4] Hosp Univ La Princesa, Serv Dermatol, Madrid, Spain