Korbel M, Kristufkova A, Dugatova M, Danis J, Nemethova B, Kascak P et al. Ceska Gynekol; 2017. Korbel M, Kristufkova A, Dugatova M, Danis J, Nemethova B, Kascak P et al. Analýza materskej morbidity a mortality v Slovenskej republike v rokoch 2007–2012. [Analysis of maternal morbidity and mortality in Slovak Republic in the years 2007-2012]. Ceska Gynekol. 2017;82(1):6-15 (in Slovak).