title: A closed system for investigating the relationship between the gaseous environment and the behavior of small mammals.
mesh_terms: D000818:Animals; D001273:Atmosphere Exposure Chambers / Q000295:instrumentation*; D001522:Behavior, Animal; D003216:Conditioning, Operant; D004777:Environment; D005740:Gases; D007553:Isotope Labeling; D008322:Mammals / Q000502:physiology*; D008722:Methods; D010101:Oxygen Consumption; D010103:Oxygen Isotopes; D051381:Rats
chemical_list: D005740:Gases; D010103:Oxygen Isotopes