pid type title authors mentors source_title published_date url doi isbn issn eissn vef:325 thesis "Liječenje bolesti medijalnog odjeljka lakatnog zgloba u pasa" "Zečević, Iva" kbcsm:512 "journal article" "The impact of temporal variability of biochemical markers PAPP-A and free β-hCG on the specificity of the first-trimester Down syndrome screening: a Croatian retrospective study" "Tišlarić-Medenjak, Dubravka; Zec, Ivana; Šimundić, Ana-Maria; Sabolović-Rudman, Senka; Kos, Milan; Megla, Željka Bukovec"