Fig. 1From: Pre-flight evaluation of adult patients with cystic fibrosis: a cross-sectional studyRelationships between arterial oxygen partial pressure (PaO2) during Hypoxia Altitude Simulation Test (HAST) and forced expiratory volume in one second (FEV1) (a), pulse oximetry (SpO2) (b), PaO2 (c) and SaO2 at rest (d)Back to article page