Balkovec, Iva, and Milojka Lesjak; Hilda Veličkov; WHO; Zdenka Mrak. 1993. “Advances - Experience - Suggestions”. Slovenian Nursing Review 27 (1/2):71-76. https://obzornik.zbornica-zveza.si:8443/index.php/ObzorZdravNeg/article/view/1979.