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Deep breathing exercises with positive expiratory pressure at a higher rate improve oxygenation in the early period after cardiac surgery -- a randomised controlled trial
Urell C, Emtner M, Hedenstrom H, Tenling A, Breidenskog M, Westerdahl E
European Journal of Cardio-thoracic Surgery 2011 Jul;40(1):162-167
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

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