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Figure 1: (a) Comparison of morbidity–pulmonary function test types (mean values). (b) Comparison of morbidity–pulmonary function test grades (mean values). ICU: Intensive care unit, ESAO: Early sign of airway obstruction

Figure 1: (a) Comparison of morbidity–pulmonary function test types (mean values). (b) Comparison of morbidity–pulmonary function test grades (mean values). ICU: Intensive care unit, ESAO: Early sign of airway obstruction