Sophonsritsuk 2000.

Methods	Stated to be a "randomized controlled trial".
Participants	Women between 28 and 34 weeks' gestation presenting with preterm uterine contractions who have been successfully treated with parenteral terbutaline.
Interventions	Oral terbutaline (2.5 mg 4 times daily) versus no treatment.
Outcomes	Recurrence preterm labour; prolongation of pregnancy; birthweight; preterm birth; 5‐minute Apgar score; congenital anomaly.
Notes	Abstract only; recurrent preterm labour presented as percentage only; no other results presented.