1. The role of the emergency medical service in gas defense Author(s): Dearing, Warren Palmer, 1905-1994 Publication: [Washington, D.C. : Office of Civilian Defense, 1943?] Subject(s): Gas Poisoning -- prevention & controlCivil Defense -- organization & administrationEmergency Medical Services -- organization & administrationChemical WarfareUnited StatesUnited States. Office of Civilian Defense.