Szymański, Sławomir, et al. “The Effect of Perinatal Antibiotic Prophylaxis on an Early Onset of Symptomatic Infections in Newborns”. Nursing in the 21st Century, vol. 16, no. 3(60), Feb. 2018, pp. 17-24, https://doi.org/10.1515/pielxxiw-2017-0024.