1. Institute of Microbiology, Lausanne University Hospital, Lausanne, Switzerland
2. UCIBIO-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
3. Department of Biology, University of Copenhagen, Copenhagen, Denmark
4. Vital-IT Group, SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland