Effectiveness of cervical pessary compared to cervical cerclage with or without vaginal progesterone for the prevention of preterm birth in women with twin pregnancies and a short cervix : Study protocol for a two-by-two factorial randomised clinical trial
Citation
Dang , V Q , Dang , V Q , He , Y T N , He , Y T N , Pham , H N H , Trieu , T T T , Bui , T Q , Vuong , N T , Nguyen , L M T , Nguyen , D T N , Le , T V , Li , W , Le , C H , Mol , B W & Vuong , L N 2020 , ' Effectiveness of cervical pessary compared to cervical cerclage with or without vaginal progesterone for the prevention of preterm birth in women with twin pregnancies and a short cervix : Study protocol for a two-by-two factorial randomised clinical trial ' , BMJ Open , vol. 10 , no. 6 , e036587 . https://doi.org/10.1136/bmjopen-2019-036587
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