Stålberg , Johan, and Anders Larsson. “Extraction of IgY from Egg Yolk Using a Novel Aqueous Two-Phase System and Comparison With Other Extraction Methods”. Upsala Journal of Medical Sciences 106, no. 2 (July 12, 2009): 99–110. Accessed March 29, 2026. https://ujms.net/index.php/ujms/article/view/6533.