Siswanto, F. M.; Pradhany, R. C.; Yenniastoeti, B. P.; Pangkahila, A. Ethanolic Extract of Black Grapes (Vitis Vinifera) Ameliorates Overtraining-Induced Pancreatic β-Cells and Muscle Damage. J. Riset Vet. Ind. 2020, 4.