Evenson, A. L., & Sanders, G. F. (2015). Determination of the Validity and Reliability of a Modified Osteoporosis Health Belief Scale and Osteoporosis Self-Efficacy Scale to Include Vitamin D. Californian Journal of Health Promotion, 13(2), 85-96. https://doi.org/10.32398/cjhp.v13i2.1826