Al-Baldawi, S. Q., H. K. Al-Hakeim, and I. Khémiri. “Selenium Status and Tryptophan Catabolites As Predictive Biomarkers of Depression in Hypothyroid Patients”. Regulatory Mechanisms in Biosystems, Vol. 16, no. 3, Oct. 2025, p. e25154, doi:10.15421/0225154.