Top journals Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG 1
case-report 2012 [Suddenly appearing erythematous umbilical nodule with central gray-black color] Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG ·doi:10.1111/j.1610-0387.2011.07810.x