Rozalska-Walaszek, Ilona, et al. “Stress, Its Effects and Emotions Experienced by Parents of Childrenhospitalized in Neonatal Intensive Care Unit”. Current Problems of Psychiatry, vol. 16, no. 2, Sept. 2015, pp. 81-87, https://czasopisma.umlub.pl/cpp/article/view/2031.