Assertion: severe rejection | /r/HasProperty | graded a4
Facets:
Source sentences:
text: The severity of acute rejection, based on lung biopsy findings, is graded on a scale of 0 to 4; no rejection is graded as A0, minimal rejection is graded as A1, mild rejection is graded A2, moderate rejection is graded A3, and severe rejection is graded A4.