Sóki J., Hedberg M., Patrick S., Bálint B., Herczeg R., Nagy I., Hecht D.W., Nagy E. and Urbán E. (in press) Emergence and evolution of an international clone of multi-resistant Bacteroides fragilis isolates Journal of Antimicrobial Chemotherapy http://www.ncbi.nlm.nih.gov/pubmed/27246231