Lukenda Žanko, Vesna; Domislović, Viktor; Trkulja, Vladimir; Krznarić-Zrnić, Irena; Turk-Wensveen, Tamara; Krznarić, Željko; Filipec Kanižaj, Tajana; Radić-Kristo, Delfa; Bilić-Zulle, Lidija; Orlić, Lidija; Dinjar-Kujundžić, Petra; Poropat, Goran; Štimac, Davor; Hauser, Goran; Mikolašević, Ivana: Vitamin D for treatment of non-alcoholic fatty liver disease detected by transient elastography: A randomized, double-blind, placebo-controlled trial