Cita APA

Arabin, B., & Alfirevic, Z. (2013). Cervical pessaries for prevention of spontaneous preterm birth: Past, present and future. Ultrasound Obstet Gynecol.

Chicago Style Citation

Arabin, B., i Z. Alfirevic. "Cervical Pessaries for Prevention of Spontaneous Preterm Birth: Past, Present and Future." Ultrasound Obstet Gynecol 2013.

Cita MLA

Arabin, B., i Z. Alfirevic. "Cervical Pessaries for Prevention of Spontaneous Preterm Birth: Past, Present and Future." Ultrasound Obstet Gynecol 2013.