Assertion: aplastic anemia | /r/HasAspect | lag time
Facets:
value: before definitive diagnosis
type: TEMPORAL
Source sentences:
text: Because aplastic anemia may develop over several months after exposure to the suspected agent and can have a lag time before definitive diagnosis (11), we defined exposure to AEDs as a prescription for an AED within the time window of 1 year before the index date.