Assertion: adrenal medulla's cell | /r/CapableOf | migrate on both sides of the spinal cord
Facets:
value: behind the dorsal aorta
type: LOCATION
value: during the fourth
type: TEMPORAL
Source sentences:
text: Neuroblasts: These cells migrate, during the fourth to the fifth week of fetal development in humans, on both sides of the spinal cord toward the region just behind the dorsal aorta forming the two chains of sympathetic ganglia (Sympathetic chain).