When diagnosing a patient with PTSD there are specifiers of dissociative symptoms, either depersonalization or derealization. When is the specifier "with delayed expression" appropriate? 1) If full diagnostic criteria are not met until at least 4 months after the event 2) If full diagnostic criteria are not met until at least 6 months after the event 3) If full diagnostic criteria are not met until at least 8 months after the event 4) If full diagnostic criteria are not met until at least 12 months after the event
