[1] LMU, Dept Med Grosshadern 2, Munich, Germany
[2] Ludwig Maximilians Univ Munchen, Dept Dermatol & Allergy, Munich, Germany
[3] Ludwig Maximilians Univ Munchen, Clin Prevent Dent & Parodontol, Munich, Germany
[4] Ludwig Maximilians Univ Munchen, Inst Med Informat Biometry & Epidemiol IBE, Munich, Germany
[5] Med Univ Vienna, Div Gastroenterol & Hepatol, Dept Internal Med 3, Vienna, Austria
[6] Ludwig Maximilians Univ Munchen, Inst Clin Chem Grosshadern, Munich, Germany
[7] Hannover Med Sch, Dept Pediat, Hannover, Germany
[8] Med Univ Vienna, Dept Gen Dermatol, Vienna, Austria
[9] Rhein Westfal TH Aachen, Rheinisch Westfal Tech Hsch, Dept Human Genet, Aachen, Germany
[10] Queens Univ Belfast, Ctr Infect & Immun, Belfast, Antrim, North Ireland