1. Department of Dermatology; Academic Medical Center; Meibergdreef 9 1105 AZ Amsterdam the Netherlands
2. Medical Library; Academic Medical Center; Meibergdreef 9 1105 AZ Amsterdam the Netherlands
3. Department of Pathology; Academic Medical Center; Meibergdreef 9 1105 AZ Amsterdam the Netherlands
4. Department of Dermatology; VU Medical Center; Amsterdam the Netherlands