In Vitro Activity of Aztreonam-avibactam and Ceftazidime-avibactam against Pseudomonas aeruginosa Collected in a Global Surveillance Program in the Africa/Middle East, 2014–2017. Issue 2 (February 2020) - Morrissey, I; Johnson, A; Hackel, M; Stone, G; Dowzickey, M; Sahm, D