Assertion: stem cell | /r/ObjectUse | used in clinical therapies
Facets:
value: for over 40 years
type: TEMPORAL
Source sentences:
text: Some stem cells, such as the adult bone marrow or peripheral blood stem cells, have been used in clinical therapies for over 40 years.
text: Some stem cells, such as the adult bone marrow or peripheral blood stem cells, have been used in clinical therapies for over 40 years.