[1] Univ Groningen, Univ Med Ctr Groningen, UMCG Ctr Expertise Blistering Dis, Dept Dermatol, Groningen, Netherlands
[2] Univ Florence, Dept Hlth Sci, Sect Dermatol, Florence, Italy
[3] ASST Papa Giovanni XXIII Hosp, Dermatol Unit, Bergamo, Italy
[4] Outpatient Consultat Rare Dis, Div Dermatol, Trento, Italy
[5] Aristotle Univ Thessaloniki, Fac Med, Papageorgiou Gen Hosp, Autoimmune Skin & Bullous Dis Unit,Dermatol Dept 2, Thessaloniki, Greece
[6] Akdeniz Univ, Fac Med, Dept Dermatol, Antalya, Turkiye
[7] Univ Belgrade, Univ Clin Ctr Serbia, Fac Med, Dept Dermatovenereol, Belgrade, Serbia
[8] Univ Belgrade, Univ Clin Ctr Serbia, Clin Dermatovenereol, Belgrade, Serbia
[9] Masaryk Univ, St Anna Hosp, Dept Dermatovenereol 1, Brno, Czech Republic
[10] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dermatol Unit, Milan, Italy
[11] Tech Univ Dresden, Univ Hosp, Dept Dermatol, Dresden, Germany
[12] Osped Classificato Cristo Re, Dept Dermatol, Rome, Italy
[13] Hannover Med Sch, Dept Dermatol & Allergol, Hannover, Germany
[14] Univ Milan, Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dermatol Unit, Milan, Italy
[15] Univ Milan, Dept Pathophysiol & Transplantat, Milan, Italy
[16] IDI IRCCS, Mol & Cell Biol Lab, Rome, Italy
[17] Univ Lubeck, Dept Dermatol, Lubeck, Germany
[18] Univ Iowa, Dept Dermatol, Iowa City, IA USA
[19] Univ Barcelona, Hosp Clin Barcelona, Dept Dermatol, Barcelona, Spain
[20] Univ Lubeck, Dept Dermatol, Lubeck, Germany
[21] Univ Lubeck, Lubeck Inst Expt Dermatol LIED, Lubeck, Germany
[22] Univ Med Ctr Groningen, Dept Dermatol, Hanzeplein 1, NL-9700 RB Groningen, Netherlands