Guanidinylated Polymyxins as Outer Membrane Permeabilizers Capable of Potentiating Rifampicin, Erythromycin, Ceftazidime and Aztreonam against Gram-Negative Bacteria. - Ramirez DM; Ramirez D; Arthur G; Zhanel G; Schweizer F (Antibiotics (Basel, Switzerland), 2022)