Nolan, J. M., Meagher, K. A., Howard, A. N., Moran, R., Thurnham, D. I., & Beatty, S. (2016). Lutein, zeaxanthin and meso-zeaxanthin content of eggs laid by hens supplemented with free and esterified xanthophylls. J Nutr Sci.

Nolan, John M., Katherine A. Meagher, Alan N. Howard, Rachel Moran, David I. Thurnham, e Stephen Beatty. "Lutein, Zeaxanthin and Meso-zeaxanthin Content of Eggs Laid By Hens Supplemented With Free and Esterified Xanthophylls." J Nutr Sci 2016.

Nolan, John M., et al. "Lutein, Zeaxanthin and Meso-zeaxanthin Content of Eggs Laid By Hens Supplemented With Free and Esterified Xanthophylls." J Nutr Sci 2016.