1. Medizinische Klinik-Klinikum Innenstadt of the Ludwig-Maximilians University Muenchen, Munich
2. Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands
3. Department of Bacteriology at the University of Goettingen, Goettingen
4. Federal Biological Research Center for Agriculture and Forestry, Institute for Biological Control, Darmstadt, Germany
5. Medizinische Poliklinik
6. Institute for Hygiene and Microbiology at the University of Wuerzburg, Wuerzburg