S. Szymański, K. Szczerba, and V. Konstanty-Kurkiewicz, “The effect of perinatal antibiotic prophylaxis on an early onset of symptomatic infections in newborns”, Piel21w, vol. 16, no. 3(60), pp. 17–24, Feb. 2018, doi: 10.1515/pielxxiw-2017-0024.