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| The evaluation of the incentive spirometer in the management of postoperative pulmonary complications | 
| Craven JL, Evans GA, Davenport PJ, Williams RH | 
| The British Journal of Surgery 1974 Oct;61(10):793-797 | 
| clinical trial | 
| 5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; 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* | 
| This record does not have an abstract.  
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