Assertion: mechanism | /r/AtLocation | investigation
Facets:
Source sentences:
text: The mechanism is under investigation, however evidence suggests it goes through a nitrite radical
text: The metabolic process was identified in 1960s as catalysis by cytochrome P450 which produces reactive species that can interact with the DNA to form adducts,; the mechanism by which the PAH adducts give rise to mutation, however, is still under investigation.