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| Effect of High Flow Nasal Cannula and Non-invasive Ventilation in the Treatment of Acute Exacerbation of Chronic Obstructive Pulmonary Disease Complicated with Type Ⅱ Respiratory Failure |
| LU Sanye, WEI Shangzhong, SUN Renquan |
| First-author's address: Department of Emergency Medicine, Hechi Third People's Hospital, Hechi 547000, China |
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Received: 28 November 2023
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