Assertion: neuron's property | /r/DefinedAs | james till
Facets:
value: in the early 1960s
type: TEMPORAL
Source sentences:
text: The key properties of a stem cell were first defined by Ernest McCulloch and James Till in the early 1960s.
text: The key properties of a stem cell were first defined by Ernest McCulloch and James Till in the early 1960s.