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    					| Application of Evidence-based Practice of Bakri Balloon Management in Postpartum Hemorrhage Patients with Placenta Previa |  
						| QU Qingnü |  
						| First-author's address: People's Hospital of Liupanshui City, Guizhou Province, Liupanshui 553001, China |  
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															| Received: 20 September 2022 |  |  |  |  
											 
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