Vural, Faik, Faruk Turgay, Melih Balyan, Tolga Akşit, and Mehmet Zeki Özkol. “β‐endorphin Level and Lactate Elimination: Effects on the Shot and Sprint Performances in Amateur Soccer Players”. Progress in Nutrition 23, no. S1 (May 3, 2021): e2021125. Accessed September 28, 2025. https://mail.mattioli1885journals.com/index.php/progressinnutrition/article/view/11359.