title: Bipolar disorder in post-traumatic stress disorder--a difficult diagnosis: case reports.
mesh_terms: D000328:Adult; D001714:Bipolar Disorder / Q000175:diagnosis*; D003130:Combat Disorders / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis*