Ceylan, A.; Çalık, F.; Geri, S.; Şen, M.; Ece, C.; Sumer, M. Determining the Knowledge Levels and Opinions of Athletes Who Is Age Under-16 in Different Branches about Doping and Ergogenic Aids. Progr Nutr 2021, 22 (4), e2020093. https://doi.org/10.23751/pn.v22i4.10984.