title: Antibody response of normal and germ free rats to injected sheep erythrocytes when held in a helium--oxygen atmosphere.
mesh_terms: D000372:Agglutination Tests; D000818:Animals; D000917:Antibody Formation; D018504:Ecological Systems, Closed; D004912:Erythrocytes / Q000276:immunology*; D005260:Female; D005856:Germ-Free Life; D006371:Helium; D006461:Hemolysis; D008297:Male; D010100:Oxygen; D051381:Rats; D011919:Rats, Inbred Strains; D012756:Sheep; D013312:Stress, Physiological / Q000276:immunology; D013997:Time Factors
chemical_list: D006371:Helium; D010100:Oxygen