Fig. 1From: Role of nebulized colistin as a substitutive strategy against nosocomial pneumonia caused by CR-GNB in intensive care units: a retrospective cohort studyStudy flow diagram and patient exclusion criteria. Low dose nebulized colistin was defined as a daily dose ≤ 6 MIU CMS, and high-dose nebulized colistin was defined as > 6 MIU CMS. CR-GNB, carbapenem-resistant Gram-negative bacteria; HAP, hospital acquired pneumonia; VAP, ventilator-associated pneumonia; ICU, intensive care unitBack to article page