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Heart rate recovery response between normoxia and hypoxia in control and preterm subjects
A. HRR (bpm; absolute drop in HR from max) in normoxia (triangles) and hypoxia (circles) in control subjects. B. HRR in normoxia (triangles) and hypoxia (circles) in preterm subjects. Data are expressed as mean ± SEM. *p<0.05 adjusted for pairwise comparison between hypoxia and normoxia conditions at each time point.
