Assertion: autoimmunity's cell | /r/HasProperty | altered in some way
Facets:
value: by infection
type: CAUSE
value: by other environmental factors
type: CAUSE
value: by drugs
type: CAUSE
Source sentences:
text: Cells of the body may be altered in some way, either by drugs, infection, or other environmental factors, so that they are no longer recognizable as "self" to the immune system.