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PCR amplification of internal transcribed spacer 16S–23S on vegative and normal-appearing valves of cows 04–927 and 05–1406. 1, Molecular weight marker; 2, negative control; 3, Bartonella quintana; 4, B. bovis; 5 and 6, normal appearing and vegetative valves (Cow 04–927); 7 and 8, normal appearing and vegetative valves (Cow 05–1406); 9, molecular weight marker.
