[1] Heidelberg Univ, Dept Dermatol, Occupat Dermatol, DE-69115 Heidelberg, Germany
[2] Otto von Guericke Univ, Inst Social Med & Hlth Syst Res, Magdeburg, Germany
[3] Univ Regensburg, Inst Epidemiol & Prevent Med Med Sociol, Regensburg, Germany
[4] Tech Univ Dresden, Univ Hosp, Ctr Evidence Based Healthcare, Dresden, Germany
[5] Tech Univ Dresden, Med Fac Carl Gustav Carus, Dresden, Germany
[6] Hannover Med Sch, Dept Dermatol & Allergy, Div Immunodermatol & Allergy Res, Hannover, Germany
[7] Tech Univ Dresden, Univ Allergy Ctr, Med Fac Carl Gustav Carus, Dept Dermatol, Dresden, Germany
[8] Univ Hosp Schleswig Holstein, Ctr Inflammatory Skin Dis, Dept Dermatol & Allergy, Campus Kiel, Kiel, Germany
[9] Elbe Klinikum Buxtehude, Clin Dermatol, Buxtehude, Germany
[10] Ludwig Maximilians Univ Munchen, Clin & Outpatient Clin Dermatol & Allergy, Munich, Germany
[11] Heidelberg Univ, Dept Dermatol, Heidelberg, Germany
[12] Practice Dr Med Franca Wiemers, Leipzig, Germany
[13] Practice Dr Med Konstantin Ertner, Nurnberg, Germany
[14] Univ Med Ctr Hamburg Eppendorf, Inst Hlth Serv Res Dermatol, Hamburg, Germany
[15] Practice Dr Med Julia Wildberger, Hautmed, Bad Soden, Germany
[16] Focus Practice Chron Inflammatory Dermatoses Skin, Selters Westerwald, Germany
[17] Study Ctr CMS3 Co Med Study & Serv, Selters Westerwald, Germany
[18] Charite, Dept Dermatol Allergy & Venereol, Berlin, Germany
[19] Tech Univ Munich, Sch Med, Dept Dermatol & Allergy, Munich, Germany
[20] Bielefeld Univ, Dept Dermatol, OWL Univ Hosp, Campus Clin Bielefeld, Bielefeld, Germany
[21] Dermatol Lesum, Practice Dr Med Andrea Asmussen, Bremen, Germany
[22] Practice Dr Med Anika Hunermund & Mario Pawlak, Heiligenstadt, Germany
[23] Univ Erlangen Nurnberg, German Ctr Immunotherapy, Dept Dermatol, Erlangen, Germany
[24] Univ Hosp Aachen, Clin Dermatol, Aachen, Germany
[25] Univ Hosp Aachen, Clin Allergy, Aachen, Germany
[26] Practice Dr Med Christiane Handrick, Berlin, Germany
[27] Helix Med Excellence Ctr, Dermatol Clin, Mainz, Germany
[28] Practice Dr Med Beate Schwarz, Langenau, Germany
[29] Practice Dr Med Magnus Bell, Andernach, Germany
[30] Univ Hosp, Clin Dermatol, Mainz, Germany
[31] Practice Dr Med Sung Hei Hong Weldemann, Freiburg, Germany
[32] Univ Hosp Duesseldorf, Dept Dermatol & Allergol, Dusseldorf, Germany
[33] Hautambulatorium Magdeburg, Practice Dr Med Jens Joachim Brucher, Magdeburg, Germany