Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Adverse effects
RCT 4-armed trial	593 women with nausea and vomiting in early pregnancy Further report of reference	Perinatal outcome, congenital abnormalities, pregnancy complications, or other infant outcomes with weekly traditional acupuncture for 4 weeks with weekly PC6 acupuncture for 4 weeks with weekly 8 sham acupuncture for 4 weeks with no acupuncture for 4 weeks