ISUOG Practice Guidelines: role of ultrasound in the prediction of spontaneous preterm birth. (29th July 2022) - Coutinho, C. M.; Sotiriadis, A.; Odibo, A.; Khalil, A.; D'Antonio, F.; Feltovich, H.; Salomon, L. J.; Sheehan, P.; Napolitano, R.; Berghella, V.; da Silva Costa, F.