[Retracted] Transnasal High-Flow Oxygen Therapy versus Noninvasive Positive Pressure Ventilation in the Treatment of COPD with Type II Respiratory Failure: A Meta-Analysis

<div>Comparison of 24 h-PAO<sub>2</sub> after treatment between the HFNC group and NIV group.</div>

Computational and Mathematical Methods in Medicine

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Figure 4

Figure 4: [Retracted] Transnasal High-Flow Oxygen Therapy versus Noninvasive Positive Pressure Ventilation in the Treatment of COPD with Type II Respiratory Failure: A Meta-Analysis 

Figure 4 | [Retracted] Transnasal High-Flow Oxygen Therapy versus Noninvasive Positive Pressure Ventilation in the Treatment of COPD with Type II Respiratory Failure: A Meta-Analysis 