Assertion: brain tumor's type | /r/AtLocation | child
Facets:
value: most often
type: DEGREE
Source sentences:
text: Many different types of brain tumors — which may or may not be cancerous — can occur in children.
text: This type of tumor most often occurs in children.
text: However, certain types of gliomas, like pilocytic astrocytomas and ependymomas, most often occur in children and teenagers.
text: Numbers are not readily available for all types of tumors that occur in children, often because they are rare or are hard to classify.