Assertion: carbon dioxide | /r/Causes | severe muscle twitching
Facets:
value: within several minutes
type: TEMPORAL
Source sentences:
text: At exposures between 10 and 15 percent, carbon dioxide has been shown to cause unconsciousness, drowsiness, severe muscle twitching, and dizziness within several minutes (Wong 1992, CATAMA 1953, Sechzer et al. 1960).