1. Prediction of Preterm Birth in Multiple Pregnancies: Development of a Multivariable Model Including Cervical Length Measurement at 16 to 21 Weeks’ Gestation Lidewij van de Mheen, MD, Ewoud Schuit, MSc, PhD, Arianne C. Lim, MD, PhD, Martina M. Porath, MD, PhD, Dimitri Papatsonis, MD, PhD, Jan J. Erwich, MD, PhD, Jim van Eyck, MD, PhD, Charlotte M. van Oirschot, MD, Piet Hummel, MD, PhD, Johannes J. Duvekot, MD, PhD, Tom H.M. Hasaart, MD, PhD, Rolf H.H. Groenwold, MD, PhD, Karl G.M. Moons, PhD, Christianne J.M. de Groot, MD, PhD, Hein W. Bruinse, MD, PhD, Maria G. van Pampus, MD, PhD, Ben W.J. Mol, MD, PhD Journal of Obstetrics and Gynaecology Canada Volume 36, Issue 4, Pages 309-319 (April 2014) DOI: 10.1016/S1701-2163(15)30606-X Copyright © 2014 Society of Obstetricians and Gynaecologists of Canada Terms and Conditions Terms and Conditions

2. Figure 1 Journal of Obstetrics and Gynaecology Canada 2014 36, 309-319DOI: (10.1016/S1701-2163(15)30606-X) Copyright © 2014 Society of Obstetricians and Gynaecologists of Canada Terms and Conditions Terms and Conditions

3. Figure 2 Journal of Obstetrics and Gynaecology Canada 2014 36, 309-319DOI: (10.1016/S1701-2163(15)30606-X) Copyright © 2014 Society of Obstetricians and Gynaecologists of Canada Terms and Conditions Terms and Conditions

4. Figure 3 Journal of Obstetrics and Gynaecology Canada 2014 36, 309-319DOI: (10.1016/S1701-2163(15)30606-X) Copyright © 2014 Society of Obstetricians and Gynaecologists of Canada Terms and Conditions Terms and Conditions

5. Figure 4 Journal of Obstetrics and Gynaecology Canada 2014 36, 309-319DOI: (10.1016/S1701-2163(15)30606-X) Copyright © 2014 Society of Obstetricians and Gynaecologists of Canada Terms and Conditions Terms and Conditions

6. Figure 5 Journal of Obstetrics and Gynaecology Canada 2014 36, 309-319DOI: (10.1016/S1701-2163(15)30606-X) Copyright © 2014 Society of Obstetricians and Gynaecologists of Canada Terms and Conditions Terms and Conditions