Assertion: spontaneous haemothorax | /r/HasProperty | rare entity
Facets:
value: very
type: DEGREE
Source sentences:
text: Bilateral spontaneous haemothorax is a very rare entity and the main cause of it is primary or metastatic pleural angiosarcoma.
text: Spontaneous haemothorax is a rare clinical condition in the absence of trauma or iatrogenic causes.