Yordanova, A., Tolekova, A. , Teneva, P., Dobreva, I. and Kichukova, K. 2023. Determination of Factors Affecting Vitamin D Levels in Women at Risk Using Classification and Regression Tree Analysis. Open Access Macedonian Journal of Medical Sciences. 11, A (Jan. 2023), 70–75. DOI:https://doi.org/10.3889/oamjms.2023.11340.