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Annals of Intensive Care
Fig. 1 | Annals of Intensive Care

Fig. 1

From: Three broad classifications of acute respiratory failure etiologies based on regional ventilation and perfusion by electrical impedance tomography: a hypothesis-generating study

Fig. 1

Flow chart of the enrolled patients. The control group was postoperative ICU patients without acute respiratory failure; ARF: acute respiratory failure; PED group: patients with pulmonary embolism-related disease; DLD group: patients with diffuse lung involvement disease; FLD group: patients with focal lung involvement disease; CTPA: CT pulmonary angiography

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