1. Magnesium sulphate for preventing preterm birth in threatened preterm labour.;Crowther;Cochrane Database Syst Rev,2002
2. Terbutaline pump maintenance therapy after threatened preterm labor for preventing preterm birth.;Nanda;Cochrane Database Syst Rev,2002
3. Oral betamimetics for maintenance therapy after threatened preterm labour.;Dodd;Cochrane Database Syst Rev,2006
4. Betamimetics for inhibiting preterm labour.;Anotayanonth;Cochrane Database Syst Rev,2004
5. Calcium channel blockers for inhibiting preterm labour.;King;Cochrane Database Syst Rev,2003