1. Department of Biochemistry, University of Geneva, 30 Quai E. Ansermet, 1211 Geneva 4, Switzerland.
2. Research Group Gene Expression, Max Planck Institute of Experimental Medicine, Hermann-Rein-Strasse 3, 37075 Goettingen, Germany.
3. Genomics Platform, CMU, University of Geneva, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland.