Bischof, Kevin, Anna Moitzi, and Daniel König. 2024. “Impact of Collagen Peptide Supplementation Together With Long-Term Resistance Training on Maximal Strength and Muscle Size in Healthy Adults – A Systematic Review and Meta-Analysis”. Current Issues in Sport Science (CISS) 9 (4):002. https://doi.org/10.36950/2024.4ciss002.