Francuziak, Anna Ewelina, Piotr Mikołaj Dembicki, Kinga Kozłowska, Weronika Kalinowska, Paulina Sara Kulasza, Aleksandra Kaczmarek, Wojciech Kaczmarek, Konrad Bagiński, Magdalena Jabłonowska, and Magdalena Krakowiak. 2025. “Differences Between Relative Energy Deficiency in Sport (RED-S) and Overtraining Syndrome in Endurance Athletes: A Systematic Review of Clinical, Endocrine and Performance-Based Indicators”. Quality in Sport 46 (November):66554. https://doi.org/10.12775/QS.2025.46.66554.