Assertion: nasal snuff | /r/MadeOf | many substances
Facets:
Source sentences:
text: Sapundzhiev, N., & Werner, J. A. (2003) found that the chronic "abuse [of nasal sniffing of dry snuff] leads to morphological and functional changes in the nasal mucosa;" but, although dry nasal snuff "contains many substances that are potentially carcinogenic, there is no epidemiological evidence for increased incidence of local malignancies in habitual snuff users.