title: Chris Callsen on special operations.
authors.forename: Chris
authors.initials: C
authors.lastname: Callsen
mesh_terms: D003299:Cooperative Behavior; D004189:Disaster Planning / Q000458:organization & administration*; D004636:Emergency Service, Hospital / Q000191:economics / Q000458:organization & administration*; D035846:Law Enforcement; D018571:Sentinel Surveillance; D014481:United States