Bakan, A. B., N. Uzun, S. K. Arli, and M. Yıldız. “THE RELATIONSHIP BETWEEN THE COTININE LEVEL IN URINE AND VITAMIN D IN THE UNIVERSITY STUDENTS”. Belitung Nursing Journal, vol. 6, no. 6, Dec. 2020, pp. 214-9, doi:10.33546/bnj.1180.