EP19.23: INTERGROWTH‐21st and customised growth charts in fetuses with left heart obstruction: perinatal biometry, cerebroplacental hemodynamics and outcome. (30th September 2019) - Helfrich, F.; Graupner, O.; Ostermayer, E.; Lobmaier, S.M.; Ortiz, J.U.; Ewert, P.; Wacker‐Gussmann, A.; Haller, B.; Axt‐Fliedner, R.; Enzensberger, C.; Abel, K.; Karge, A.; et al.