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We would like to acknowledge the technical assistance of Mr. J. Baird.
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Dellipiani, A.W., Samson, R.R., Girdwood, R.H. et al. The uptake of vitamin B12 byE. coli: Possible significance in relation to the blind loop syndrome. Digest Dis Sci 13, 718–726 (1968). https://doi.org/10.1007/BF02232996
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DOI: https://doi.org/10.1007/BF02232996