Peripheral Brain-Derived Neurotrophic Factor and Oxytocin Dynamics During Early Antidepressant Treatment in Unipolar Major Depressive Disorder. - Florea, Tudor; Iacob, Vlad Teodor; Cristofor, Ana Caterina; Chele, Gabriela; Chiriță, Roxana (BRAIN: Broad Research in Artificial Intelligence & Neuroscience, 2026)