Fig. 3. Individual arterial oxygen tensions (Pao2) after preoxygenation for all subjects, grouped by position of randomization. Mean values ± 95% confidence intervals of the mean for both groups are also shown ( P = 0.01).
Fig. 3. Individual arterial oxygen tensions (Pao2) after preoxygenation for all subjects, grouped by position of randomization. Mean values ± 95% confidence intervals of the mean for both groups are also shown ( P = 0.01).
