1. 1Center for Biological Sequence Analysis, Department of Systems Biology, The Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
2. 2Lersoe Parkalle 37, 2TV, 2100 Copenhagen, Denmark
3. 3Roche Diagnostics Ltd., CH-6343 Rotkreuz, Switzerland
4. 4UC Davis Genome Center, University of California, Davis, California, U.S.A.