Fig. 1From: Individualized positive end-expiratory pressure guided by end-expiratory lung volume in early acute respiratory distress syndrome: study protocol for the multicenter, randomized IPERPEEP trialStandard Protocol Items: Recommendation for Interventional Trials (SPIRIT) schedule of enrollment, interventions, and assessments. SOFA, Sequential Organ Failure Assessment; CPIS, clinical pulmonary index score; RASS, Ramsay Agitation Sedation Scale; ICU, intensive care unitBack to article page