[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-pH after treatment between the HFNC group and NIV group.</div>

Computational and Mathematical Methods in Medicine

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Figure 6

Figure 6: [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 6 | [Retracted] Transnasal High-Flow Oxygen Therapy versus Noninvasive Positive Pressure Ventilation in the Treatment of COPD with Type II Respiratory Failure: A Meta-Analysis 