1. Laboratorio de Regulación Génica Bacteriana. Instituto de Agrobiotecnología, CSIC- UPNA. Avda. Pamplona 123, Mutilva, Navarra
2. Department of Biology, Faculty of Science, RNA Group, Université de Sherbrooke, Sherbrooke, Québec, Canada
3. Wadsworth Center, New York State Department of Health, Albany, NY, USA
4. Department of Biomedical Sciences, University at Albany, Albany, NY, USA