T. Winandar, A. Raharjo, H. Wujoso, B. R. A. Sidharta, and B. I. Bagus, “Relationship between 25(OH)D and Colorectal Cancer Prevalence at Dr. Moewardi Hospital Surakarta-Indonesia: A Cross-Sectional Study”, Open Access Maced J Med Sci, vol. 9, no. B, pp. 1591–1595, Dec. 2021.