van der Schaaf, A A stable antigen for the tube agglutination test in chronic swine erysipelas. [electronic resource] - American journal of veterinary research Jan 1968 - 205-7 p. digital Publication Type: Journal Article ISSN: 0002-9645 Subjects--Topical Terms: Agglutination TestsAnimalsAntigensArthritis--diagnosisErysipelas--diagnosisImmune SeraPreservation, BiologicalSheepSheep Diseases--diagnosisSwineSwine Diseases--diagnosis