Penulis: Alan D. Irvine

Alan Irvine, MBBS, MD, Associate Professor and ConsultantPediatric Dermatologist, University of Dublin and Our Lady”sHospital for Sick Children, Dublin, Ireland Albert Yan, MD, Assistant Professor, Director ofPediatric Dermatology, Children”s Hospital of Philadelphia, University of Pennsylvania, USA. Dr Yan is also President-elect ofthe Society of Pediatric Dermatology Peter Hoeger, MD, Professor and Head of PediatricDemratology, Cathjolic Children”s Hospital, Hamburg and Departmentof Dermatology, University of Hamburg, Germany