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Heliox and forward-leaning posture improve the efficacy of nebulized bronchodilator in acute asthma: a randomized trial
Brandao DC, Britto MC, Pessoa MF, de Sa RB, Alcoforado L, Matos LO, Silva TN, de Andrade AD
Respiratory Care 2011 Jul;56(7):947-952
clinical trial
7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: Yes; Blind therapists: Yes; 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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