Yalcin, I., Calik, F., Ece, C., Geri, S., Seker, R., & Yalcin, S. (2019). Knowledge levels and preference reasons regarding the doping of U23 Turkish National Team athletes: Doping knowledge levels and preference reasons. Progress in Nutrition, 21(2), 391-398. https://doi.org/10.23751/pn.v21i2.8396