22nd World Congress on Ultrasound in Obstetrics and Gynecology, 9-13 September 2012, Copenhagen, Denmark: presentations and awards by Kohl, T, Schuerg, R, Maxeiner, H, Tchatcheva, K, Degenhardt, J, Stressig, R, Axt-Fliedner, R, Gembruch, U, Bebbington, M, Victoria, T, Danzer, E, Molden-Hauer, J, Khalek, N, Johnson, M, Hedrick, H, Adzick, N, Collins, S, Stevenson, G, Welsh, A, Noble, J, Impey, L, Sande, R, Matre, K, Kiserud, T, Eide, G