Livermore DM, Mushtaq S, Warner M (August 2009). "Activity of the anti-MRSA carbapenem razupenem (PTZ601) against Enterobacteriaceae with defined resistance mechanisms". The Journal of Antimicrobial Chemotherapy. 64 (2): 330–5. doi:10.1093/jac/dkp187. PMID19497942.
Livermore DM, Mushtaq S, Warner M (August 2009). "Activity of the anti-MRSA carbapenem razupenem (PTZ601) against Enterobacteriaceae with defined resistance mechanisms". The Journal of Antimicrobial Chemotherapy. 64 (2): 330–5. doi:10.1093/jac/dkp187. PMID19497942.