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Kirchhofer, Marc Peter; Tavel, L v; Strabel, D; Fournier, C; Steiner, Adrian; Graber, Hans Ulrich; Kaufmann, Thomas (2007). [Herd problem: udder health. Retrospective study of farms assessed by the Swiss Bovine Health Service (BHS) from 1999 to 2004]. DTW. Deutsche tierärztliche Wochenschrift, 114(9), pp. 338-44. Alfeld: Verlag M. & H. Schaper 10.2377/0341-6593-114-338
