Assertion: haematopoietic stem cell | /r/HasProperty | studied for more than 50 years
Facets:
value: experimentally
type: MANNER
value: after all
type: TEMPORAL
Source sentences:
text: Haematopoietic stem cells are important because they are by far the most thoroughly characterized tissue-specific stem cell; after all, they have been experimentally studied for more than 50 years.