Mandt N, Blume-Peytavi U, Pfrommer C, Krengel S, Goerdt S
Department of Dermatology, University Medical Center Benjamin Franklin, The Free University of Berlin, Germany.
J Am Acad Dermatol. 1999 Feb;40(2 Pt 2):318-21. doi: 10.1016/s0190-9622(99)70475-5.