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(Early use of noninvasive positive pressure ventilation for patients with acute exacerbations of chronic obstructive pulmonary disease: a multicentre randomized controlled trial) [Chinese - simplified characters]
Collaborative Research Group of Noninvasive Mechanical Ventilation for Chronic Obstructive Pulmonary Disease
Zhonghua Jie He He Hu Xi Za Zhi [Chinese Journal of Tuberculosis and Respiratory Diseases] 2005 Oct;28(10):680-684
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: Yes; Blind therapists: Yes; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: Yes; Between-group comparisons: No; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

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