Sawyer, R E.; Heffernan, K S. PhD; Hoisington, A J. PhD; and Brenner, L A. PhD
"Association between coffee, caffeine and gut biodiversity: A United States - Veteran Microbiome Project Sub - Study,"
International Journal of Exercise Science: Conference Proceedings: Vol. 9:
11, Article 21.
Available at: https://digitalcommons.wku.edu/ijesab/vol9/iss11/21