BY-NC-NDŽivojinović, DragicaPlanojević, NinaBanović, Božidar2021-04-202021-04-2020140042-8450https://scidar.kg.ac.rs/handle/123456789/12338openAccesshttps://creativecommons.org/licenses/by-nc-nd/4.0/Terms of clinical research consent's validityarticle10.2298/vsp1406588z2-s2.0-84903273268