Assertion: carotenoid | /r/AtLocation | ferret
Facets:
Source sentences:
text: Carotenoids have also been found in biliary fluids in humans (but not in rats or ferrets), so the biliary tree may constitute a recycling loop for carotenoids and retinoids between the liver and the lumen of the intestine
text: The carotenoids found in the retina are lutein and zeaxanthin, which are both of dietary origin, and meso-zeaxanthin, which is derived from lutein.