Assertion: radon | /r/AtLocation | controlled studies
Facets:
value: carefully
type: MANNER
value: on animals
type: OTHER
Source sentences:
text: It has been shown in carefully controlled studies on animals, and on hard-rock miners, and most recently confirmed in residential case-control studies, that the effects of radon gas can significantly increase the potential of lung cancer.
text: It has been shown in carefully controlled studies on animals, and on hard-rock miners, and most recently confirmed in residential case-control studies, that the effects of radon gas can significantly increase the potential of lung cancer.