4S2K:
reference: Molecular Mechanism of Avibactam-Mediated beta-Lactamase Inhibition., King DT, King AM, Lal SM, Wright GD, Strynadka NC, ACS Infect Dis. 2015 Apr 10;1(4):175-84. doi: 10.1021/acsinfecdis.5b00007. Epub, 2015 Feb 11. PMID: 27622530

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