Samadi 2010.

Methods	3‐armed randomised controlled trial.
Participants	The participants were 131 pregnant women between 38‐42 weeks of pregnancy and in labour. They were 18 to 35 years old; parity of 1 or 2; not using medications (psychotherapeutics, labour induction medications, chemical or natural pain killers) prior to the study; cervical dilatation of 3 cm to 5 cm; normal uterine contraction (20 seconds repeated every 5 minutes or less); body mass index less than 29; lack of medical or obstetrical problems such as uterine myomas, precancerous lesions, cephalopelvic disproportion, infertility or surgical operation on uterus or cervix, placenta previa, placental abruption, polyhydramnios or oligohydramnios, erythroblastosis fetalis, pre‐eclampsia, gestational diabetes, decreased fetal movements; no use of tobacco (e.g. smoking, hubble bubble, drugs) or alcohol and no verbal, auditory, or mental problems. Exclusion criteria: lack of consent; oxytocin dose in excess of routine requirements and any sign of fetal distress such as a heart rate of over 160 or less than 110 beats/minute, late decelerations, thick meconium staining and prolonged or precipitate labour, newborn weighing less than 2500 g or more than 4000 g.
Interventions	Acupressure on SP6 versus light touch at SP6 and usual care.
Outcomes	Labour pain intensity, labour duration and mode of birth.
Notes	The authors were contacted for further information on the methodology of the study. To date no response has been received.