Assertion: ragwort's alkaloid | /r/AtLocation | the urine of the rats
Facets:
Source sentences:
text: The amount of pyrrolizidine alkaloids found in the urine of the rats was 20 to 50 times less than was measured when it was given orally.
text: The amount of pyrrolizidine alkaloids found in the urine of the rats was 20 to 50 times less than was measured when it was given orally.