doi:10.1136/bmj.2.5555.804. Tsuji Y, Tomita M. [Clinical effect of intravenous injection of potassium hetacillin (Versapen 'Bristol') on pre- and post-operative
doi:10.1086/527442. Potential of old-generation antibiotics to address current need for new antibiotics. Expert Review of Anti-Infective Therapy. October
Food and Drug Administration, TYGACIL® (tigecycline) FOR INJECTION for intravenous use Prescribing Information (PDF). FDA U.S. Food and Drug Administration