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Research on Mechanical Aging Behavior of Grease in Rolling Bearing
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Characterization of Nestin, a Selective Marker for Bone Marrow Derived Mesenchymal Stem Cells
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Efficient Design of the Microstrip Reflectarray Antenna by Optimizing the Reflection Phase Curve
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New Insights on Properties and Spatial Distributions of Skeletal Stem Cells
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An Experimental Study on Deformation Fractures of Fissured Rock around Tunnels in True Triaxial Unloads
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Prednisone inhibits osteosarcoma cell by regulating the Wnt/β-catenin signaling pathway
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Summary of Evidence on Nutritional Management for Patients Undergoing Chemotherapy
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Exploration of Digital Twin Design Mechanism of the Deep in Situ Rock Insulation Coring Device
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Time-varying harmonic impedance estimation based on locally-geographically weighted regression
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Constructing a fall risk prediction model for hospitalized patients using machine learning
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The Role of Severe Vitamin D Deficiency in Predicting the Risk of Severe Exacerbation in Patients With Chronic Obstructive Pulmonary Disease
Published 2025-01-01“…Li Zhou,1– 4 Cunqiao Han,5 Yue Zhou1– 4 1Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China; 2West China School of Nursing, Sichuan University, Chengdu, People’s Republic of China; 3Disaster Medical Center, Sichuan University, Chengdu, People’s Republic of China; 4Nursing Key Laboratory of Sichuan Province, Chengdu, People’s Republic of China; 5Department of Emergency Medicine, Shangjinnanfu Hospital, West China Hospital, Sichuan University, Chengdu, People’s Republic of ChinaCorrespondence: Yue Zhou, Department of Emergency Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, Sichuan, People’s Republic of China, Tel +86-028-62539203, Email zhouyuesccd@163.comBackground: This study aims to investigate the association between vitamin D levels and the risk of severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD).Methods: We conducted a prospective observational study with 636 COPD patients admitted for exacerbations between January 2021 and December 2022. …”
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