Assertion: epithelium's material | /r/HasProperty | water-based glycol
Facets:
value: usually
type: DEGREE
value: oct,
type: LOCATION
Source sentences:
text: Pre-frozen tissues are placed into molds with the liquid embedding material, usually a water-based glycol, OCT, TBS, Cryogel, or resin, which is then frozen to form hardened blocks.