Retrospective analysis of preterm neonates with congenital heart defects delivered by cesarean section: unfavourable outcomes a neccessity for fetal cardiology education during obstetrical training? - Strzelecka, Iwona; Słodki, Maciej; Zych-Krekora, Katarzyna; Krekora, Michał; Grzesiak, Mariusz; Maroszyńska, Iwona; Respondek-Liberska, Maria (Prenatal Cardiology, 2017)