Assertion: tonsil's lymphoid tissue | /r/HasProperty | formed
Facets:
value: during ontogeny
type: TEMPORAL
Source sentences:
text: TLOs are regulated differently from the normal process whereby lymphoid tissues are formed during ontogeny, being dependent on cytokines and hematopoietic cells, but still drain interstitial fluid and transport lymphocytes in response to the same chemical messengers and gradients.