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PFGE patterns of NotI-restricted Y. enterocolitica strains from yersiniosis patients in Sweden during January to June 1999. Lanes: C, control strain; 1 to 10, Y. enterocolitica 1A strains (patients 1, 2, 3, 5, 7, 10, 17, 19, 21, and 29, respectively); 11 and 12, Y. enterocolitica 1A strains (patients 34 and 36, respectively); M, molecular size marker (lambda ladder).
