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            Penner JL, et al. Serotyping of Campylobacter jejuni and Campylobacter coli on the basis of thermostable antigens.  Eur. J. Clin. Microbiol. 2: 378-383, 1983. PubMed: 6628376
         
            Penner JL, Hennessy JN. Passive hemagglutination technique for serotyping Campylobacter fetus subsp. jejuni on the basis of soluble heat-stable antigens.  J. Clin. Microbiol. 12: 732-737, 1980. PubMed: 6796598
         
            Penner JL, et al. Serotyping of Campylobacter jejuni and Campylobacter coli on the basis of thermostable antigens.  Eur. J. Clin. Microbiol. 2: 378-383, 1983. PubMed: 6628376
         
            Penner JL, Hennessy JN. Passive hemagglutination technique for serotyping Campylobacter fetus subsp. jejuni on the basis of soluble heat-stable antigens.  J. Clin. Microbiol. 12: 732-737, 1980. PubMed: 6796598
         
            Penner JL, et al. Serotyping of Campylobacter jejuni and Campylobacter coli on the basis of thermostable antigens.  Eur. J. Clin. Microbiol. 2: 378-383, 1983. PubMed: 6628376
         
            Penner JL, Hennessy JN. Passive hemagglutination technique for serotyping Campylobacter fetus subsp. jejuni on the basis of soluble heat-stable antigens.  J. Clin. Microbiol. 12: 732-737, 1980. PubMed: 6796598
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