1 “... opioids in effectiveness or harms. Eight trials found no statistical difference in pain relief or function...”

2 “... opioids in effectiveness or harms. Eight trials found no statistical difference in pain relief or function...”

3 “... and statistical reviews, and dossiers submitted by pharmaceutical companies. REVIEW METHODS: Study selection, data...”

4 “... and statistical reviews, and dossiers submitted by pharmaceutical companies. REVIEW METHODS: Study selection, data...”

5 “... medical and statistical reviews and dossiers submitted by pharmaceutical companies. REVIEW METHODS: Study...”

6 “... hand searched reference lists, US Food and Drug Administration medical and statistical reviews...”

7 “... hand searched reference lists, US Food and Drug Administration medical and statistical reviews...”

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10 “... also hand searched reference lists, US Food and Drug Administration medical and statistical reviews...”

11 “... also hand searched reference lists, US Food and Drug Administration medical and statistical reviews...”

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