[1] Mainz Univ, Med Ctr, Dept Dermatol, Mainz, Germany
[2] Frankfurt Univ, Med Ctr, Dept Radiat Oncol, Frankfurt, Germany
[3] Carl Gustav Carus Univ, Med Ctr, Dept Dermatol, Dresden, Germany
[4] Dermatol & Teaching Practice, Constance, Germany
[5] Hannover Med Sch, Dept Plast Aesthet Hand & Reconstruct Surg, Hannover, Germany
[6] CentroDerm Clin, Wuppertal, Germany
[7] Witten Herdecke Univ, Fac Hlth, Witten, Germany
[8] German Canc Soc, Berlin, Germany
[9] Gottingen Univ, Med Ctr, Dept Dermatol Venereol & Allergol, Gottingen, Germany
[10] Rostock Univ, Med Ctr, Dept Oral & Maxillofacial Plast Surg, Rostock, Germany
[11] Dermatol & Laser Ctr, Landau, Germany
[12] Schleswig Holstein Univ, Med Ctr, Dept Dermatol Venereol & Allergol, Kiel, Germany
[13] Cologne Univ, Med Ctr, Dept Ophthalmol, Cologne, Germany
[14] Giessen Univ, Med Ctr, Dept Oral & Maxillofacial Surg, Giessen, Germany
[15] Lab Dermatohistol & Oral Pathol, Munich, Germany
[16] Schleswig Holstein Univ, Med Ctr, Dept Ophthalmol, Lubeck, Germany
[17] Rostock Univ, Med Ctr, Dept Ophthalmol, Rostock, Germany
[18] Tubingen Univ, Dept Diagnost & Intervent Radiol, Tubingen, Germany
[19] Rems Murr Med Ctr, Dept Radiol, Winnenden, Germany
[20] Gutersloh Med Ctr, Dept Plast & Aesthet Surg, Gutersloh, Germany
[21] Ludwigshafen Med Ctr, Dept Dermatol, Ludwigshafen, Germany
[22] Frankfurt Univ, Med Ctr, Dept Dermatol Venereol & Allergol, Frankfurt, Germany
[23] Bremerhaven Med Ctr, Dept Dermatol Allergol & Phlebol, Bremerhaven, Germany
[24] Munich Univ, Med Ctr, Dept Dermatol & Allergol, Munich, Germany
[25] Oral & Maxillofacial Surg Practice, Halle, Germany
[26] Helios Med Ctr, Dept Dermatol Venereol & Allergol, Hildesheim, Germany
[27] Martin Luther Univ Halle Wittenberg, Halle Univ, Med Ctr, Dept Radiat Oncol, Halle, Germany
[28] Augsburg Med Ctr, Dept Dermatol & Allergol, Augsburg, Germany
[29] Univ Leipzig, Med Ctr, Dept Otolaryngol, Leipzig, Germany