[1] IDI IRCCS, Clin Epidemiol Unit, Rome, Italy
[2] Justus Liebig Univ Giessen, Inst Med Psychol, Giessen, Germany
[3] Barts Hlth NHS Trust, London, England
[4] Queen Mary Univ, London, England
[5] Cardiff Univ, Inst Infect & Immun, Sch Med, Cardiff, Wales
[6] Justus Liebig Univ Giessen, Dept Dermatol, Giessen, Germany
[7] Vitos Klin, Giessen, Germany
[8] South Wales Clin Psychol Programme, Cardiff, Wales
[9] Vale Univ Hlth Board, Cardiff, Wales
[10] Cardiff Univ, Sch Psychol, Cardiff, Wales
[11] Univ Zaragoza, Miguel Servet Univ Hosp, IIS Aragon, Zaragoza, Spain
[12] Stavanger Univ Hosp, Dept Dermatol, Stavanger, Norway
[13] Univ Stavanger, Fac Hlth Sci, Dept Publ Hlth, Stavanger, Norway
[14] Coimbra Univ Hosp, Dept Dermatol, Coimbra, Portugal
[15] Zealand Univ Hosp, Dept Dermatol, Roskilde, Denmark
[16] Univ Copenhagen, Fac Hlth & Med Sci, Copenhagen, Denmark
[17] Innlandet Hosp Trust, Norwegian Natl Advisory Unit Concurrent Subst Abus, Brumunddal, Norway
[18] Inland Norway Univ Appl Sci, Fac Social & Hlth Sci, Elverum, Norway
[19] Univ Hosp Brest, Dept Dermatol, Brest, France
[20] Univ Hosp Miguel Servet, Dept Dermatol, Aragon Psychodermatol Res Grp GAI PD, Zaragoza, Spain
[21] Univ Clin Munster, Dept Dermatol, Munster, Germany
[22] Univ Szeged, Inst Psychol, Szeged, Hungary
[23] Wroclaw Med Univ, Dept Dermatol Venereol & Allergol, Wroclaw, Poland
[24] Rzeszow Univ, Inst Med Sci, Dept Dermatol, Med Coll, Rzeszow, Poland
[25] Skane Univ Hosp, Dept Dermatol & Venereol, Malmo, Sweden
[26] Univ Hlth Sci, Sisli Hamidiiye Etfal Res & Training Hosp, Dept Dermatol & Venereol, Istanbul, Turkiye
[27] Med Univ Graz, Dept Dermatol, Graz, Austria
[28] Univ St Cyril & Methodius, PHI Univ Clin Dermatol Skopje, Sch Med, Skopje, North Macedonia
[29] IM Sechenov First Moscow State Med Univ, Sechenov Univ, Dept Psychiat & Psychosomat, Moscow, Russia
[30] Mental Hlth Res Ctr, Dept Boundary Mental Condit & Psychosomat Disorder, Moscow, Russia
[31] Cent State Med Acad, Dept Dermatovenereol & Cosmetol, Dept Presidential Affairs, Moscow, Russia
[32] Lomonosov Moscow State Univ, Med Res & Educ Ctr, Moscow, Russia
[33] Clin Notre Dame Grace, Dept Dermatol, Gosselies, Belgium
[34] Univ Amsterdam, Locat Acad Med Ctr, Amsterdam UMC, Dept Psychiat, Amsterdam, Netherlands
[35] Univ Zaragoza, Dept Psychol, Zaragoza, Spain
[36] Leiden Univ, Inst Psychol, Hlth Med & Neuropsychol Unit, Leiden, Netherlands
[37] Vestfold Hosp Trust, Div Mental Hlth & Addict, Tonsborg, Norway