Lewicka, M., Sulima, M., Iracka, E., & Makara-Studzińska, M. (2012). The occurrence of postpartum depression in women at puerperium and the sociodemographic situation and family relationships. Current Problems of Psychiatry, 13(4), 245-250. https://doi.org/10.12923/j.2081-3910/13.4/a.04