Zdunek, Gabriela, Arkadiusz Kołodziej, and Mateusz Masiak. “The Influence of Vitamin D3 Level and Supplementation on the Severity of Symptoms and Quality of Life of Female Patients With Depression”. Polish Journal of Public Health 133 (January 26, 2023): 1–6. Accessed July 12, 2025. https://czasopisma.umlub.pl/pjph/article/view/1153.