Alfirevic, Z <br/><br/>
Vaginal progesterone, cerclage or cervical pessary for preventing preterm birth in asymptomatic singleton pregnant women with a history of preterm birth and a sonographic short cervix.  [electronic resource] 

 -  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology  Feb 2013 
 - 146-51 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial 
<br/><br/><label>ISSN: </label>1469-0705 
<br/><br/><label>Standard No.: </label>10.1002/uog.12300  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Administration, Intravaginal<br/>Adult<br/>Cerclage, Cervical--methods<br/>Cervical Length Measurement<br/>Female<br/>Humans<br/>Pessaries<br/>Pregnancy<br/>Pregnancy Outcome<br/>Pregnancy, High-Risk<br/>Premature Birth--prevention & control<br/>Progesterone--administration & dosage<br/>Tocolytic Agents--administration & dosage<br/>Uterine Cervical Incompetence--surgery