1 “... prostaglandin, route of administration, study quality, or gestational age. Small, nonsignificant differences...”

2 “... observational studies of pregnant women receiving antidepressants for mixed or unreported reasons compared...”

3 “... associated with a large increased risk of study withdrawal due to adverse events (1 RCT, 13.9% vs. 5.7%, RR...”

4 “... for randomized controlled trials (RCTs) and observational studies of patients with chronic pain evaluating...”

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9 “...DATA EXTRACTION: One investigator abstracted details about each article's study design, patient...”