Martinez 2004.

Methods	Acupuncture versus no treatment to examine the effect on uterine contractions.
Participants	The Obstetrics Outpatient Department of a university hospital in the Phillipines. 50 pregnant women who were term, singleton, not in labour, and with an uncomplicated course of pregnancy were included in the study. Exclusion criteria: women who were in the active phase of labour, who had previous caesarean section, PROM, concomitant medical illness, or allergy to metals, such as chromium or zinc.
Interventions	Spleen 6 (point Sanyinjiao), on the lower leg approximately 3 inches proximal to the centre of the medial malleolus, was stimulated bilaterally. SP6 was pierced on both sides of the lower extremities.  2 minutes were allotted for each participant for the insertion of the acupuncture needle. The control group received no intervention.
Outcomes	The frequency, intensity, duration, and interval of uterine contractions were measured for 20 minutes. No outcomes relevant to the review were reported.
Notes	The trial did not report on any outcomes relevant to this review. Study duration January to November 2003 Funding: not reported Conflicts of Interest: not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not reported
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding of participants and personnel (performance bias) All outcomes	High risk	Partcipant and clinician not blinded
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not reported
Incomplete outcome data (attrition bias) All outcomes	Low risk	Complete data, no losses
Selective reporting (reporting bias)	Low risk	Single outcome collected relating to uterine contractions
Other bias	Low risk	No imbalance at randomisation