OP02.12: Normal labour curve in twin gestation. - Hochler, H.; Guedalia, J.; Lipschuetz, M.; Walfisch, A.; Yagel, S.; Guedalia, E.; Unger, R.; Srjienko, R.; Yoles, I.; Kabiri, D.; Sheiner, E. (Ultrasound in Obstetrics & Gynecology, 2021)