Choudhry, A.; Zafar, M.; Khan, S.; Masood, S.; Hafeez, H.; Choudhry, H. EFFICACY OF CERVICAL CERCLAGE IN SONOGRAPHICALLY SHORTENED CERVIX IN WOMEN AT MODERATE RISK OF PRETERM DELIVERY: Cervical Cerclage in Women at Preterm Delivery. PAFMJ 2010, 60, 444-8.