APA

Sim S., Da Silva Costa F., Araujo Júnior E. & Sheehan P. M. (20160523). Factors associated with spontaneous preterm birth risk assessed by transvaginal ultrasound following cervical cerclage. : The Australian & New Zealand journal of obstetrics & gynaecology.

Chicago

Sim Shirlene, Da Silva Costa Fabricio, Araujo Júnior Edward and Sheehan Penelope M. 20160523. Factors associated with spontaneous preterm birth risk assessed by transvaginal ultrasound following cervical cerclage. : The Australian & New Zealand journal of obstetrics & gynaecology.

Harvard

Sim S., Da Silva Costa F., Araujo Júnior E. and Sheehan P. M. (20160523). Factors associated with spontaneous preterm birth risk assessed by transvaginal ultrasound following cervical cerclage. : The Australian & New Zealand journal of obstetrics & gynaecology.

MLA

Sim Shirlene, Da Silva Costa Fabricio, Araujo Júnior Edward and Sheehan Penelope M. Factors associated with spontaneous preterm birth risk assessed by transvaginal ultrasound following cervical cerclage. : The Australian & New Zealand journal of obstetrics & gynaecology. 20160523.