Fabian-Danielewska, A., K. Korabiusz, A. Malita, M. Stecko, A. Wawryków, I. Janik, M. Maciejewska, M. Niedzielska, and A. Wilczyńska. “Overweight and Obesity Among Young Women in Poland - the Problem of Infertility and Prenatal Complications”. Journal of Education, Health and Sport, vol. 8, no. 9, Aug. 2018, pp. 353-8, https://apcz.umk.pl/JEHS/article/view/5845.