“…The exact frequency of dermatologic diseases and characteristics of patients have been studied in limited settings; moreover most published data are heterogeneous [1,2,3,4,5,6,7,8,9]. Reasons for heterogeneity are dissimilarities in studied parameters, such as short-/long-time studies, different referral pattern, in-hospital setting [10], ambulant setting [5,11], urgent setting [1,2,4,5,6,7,8,12,13], non-urgent setting, mixed situations, or children only [14,15,16,17]. In addition, most studies were retrospective.…”