Assertion: artificial trachea | /r/CapableOf | use collagen sponges
Facets:
value: at different concentrations
type: LOCATION
value: at polypropylene scaffolding
type: LOCATION
Source sentences:
text: In 2015, a different group did a study where artificial tracheas were developed using collagen sponges at different concentrations and polypropylene scaffolding (also with rabbits).