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(Prospective randomized controlled clinical study of early use of noninvasive positive pressure ventilation in the treatment for acute exacerbation of chronic obstructive pulmonary disease) [Chinese - simplified characters]
Liu L, Qiu H-B, Zheng R-Q, Yang Y
Zhongguo Wei Zhong Bing Ji Jiu Yi Xue [Chinese Critical Care Medicine] 2005 Aug;17(8):477-480
clinical trial
2/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; 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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