1 “... screened abstracts and full text articles of identified references for eligibility and reviewed randomized...”

2 “... of references of relevant studies. REVIEW METHODS: Two investigators screened abstracts and full-text articles...”

3 “... of references of relevant studies. REVIEW METHODS: Two investigators screened abstracts and full-text articles...”

4 “... of systematic reviews. METHODS: Two investigators screened abstracts of identified references for eligibility...”

5 “... studies and recent systematic reviews. METHODS: Two investigators screened abstracts and full texts...”

6 “... of systematic reviews. METHODS: Two investigators screened abstracts of identified references for eligibility...”

7 “... studies and recent systematic reviews. METHODS: Two investigators screened abstracts and full texts...”

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