- Laboratory options for assessing the effects of direct oral anticoagulants in EstoniaPikta, Marika; Örd, Lenna; Viigimaa, Margus; Arjakse, Jüri; Banys, Valdas; Thachil, JeckoLaboratorine medicina2025 / p. 68-73 : ill https://www.researchgate.net/publication/393105667