title: Full impact remains uncertain.
mesh_terms: D000401:Aircraft; D006282:Health Personnel; D006801:Humans; D008605:Mental Health Services / Q000458:organization & administration*; D009519:New York City; D010414:Pennsylvania; D013313:Stress Disorders, Post-Traumatic / Q000628:therapy*; D023481:Terrorism / Q000523:psychology*; D014768:Virginia; D000078329:Workforce