SERODIAGNOSIS OF PLEUROPNEUMONIA USING ENZYME-LINKED-IMMUNOSORBENT-ASSAY WITH CAPSULAR POLYSACCHARIDE ANTIGENS OF ACTINOBACILLUS-PLEUROPNEUMONIAE SEROTYPES 1, 2, 5 AND 7 - BOSSE, JT; JOHNSON, RP; ROSENDAL, S (CANADIAN JOURNAL OF VETERINARY RESEARCH-REVUE CANADIENNE DE RECHERCHE VETERINAIRE, 1990)