Assertion: prolactin's level | /r/CreatedBy | non-secreting pituitary tumour
Facets:
value: directly
type: MANNER
Source sentences:
text: Note that high levels of prolactin may be caused directly by a prolactin-secreting pituitary tumour; or indirectly by a non-secreting pituitary tumour that prevents dopamine (which inhibits prolactin release) from reaching the normal prolactin-producing cells.