Beef fat prevents alcoholic liver disease in the rat

How can you tell they haven't been replicated? Is there a place to search for that kind of thing? I'm sincerely curious.

You mean the “… in the rat” part? Indeed that phrasing has fallen out of favor, though I didn’t notice it until reading this comment.

We still say x causes inflamation in the liver instead of in livers, but also causes y in unhealthy livers… wonder if there’s a valid grammar rule for these.