Rahfeld, Peter, and Stephen Withers. “Universal Donor Blood Production: Screening the Human Gut Microbiome for Novel Carbohydrate Active Enzymes”. Health Science Inquiry 10, no. 1 (June 1, 2019): Page 72-Page 74. Accessed March 14, 2025. https://healthscienceinquiry.com/index.php/hsi/article/view/6.