Detection of Mycobacterium avium ssp. paratuberculosis in ileocaecal lymph nodes collected from elderly slaughter cows using a semi-nested IS900 polymerase chain reaction.
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L. Kreienbrock | W. Schulz-Schaeffer | W. Wemheuer | W. Wemheuer | C. Czerny | A. Campe | Jutta Petschenka | I. Völkel | P. Münster | Wilhelm Wemheuer | Wiebke Wemheuer | C. Steinbrunn