1. S. L. Anzick, J. Kononen, R. L. Walker, D. D. Azorsa, X.-Y. Guan, O.-P. Kallioniemi, J. M. Trent, P. S. Meltzer, Laboratory of Cancer Genetics, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
2. M. M. Tanner, Laboratory of Cancer Genetics, Institute of Medical Technology, University of Tampere and Tampere University Hospital, Post Office Box 607, FIN-33101 Tampere, Finland.
3. G. Sauter, Institute for Pathology, University of Basel, Schönbeinstrasse 40 4003 Basel, Switzerland.