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Spaink HP, Wijfjes AH, van der Drift KM, Haverkamp J, Thomas-Oates JE, Lugtenberg BJ.Spaink HP, et al. Among authors: wijfjes ah.Mol Microbiol. 1994 Sep;13(5):821-31. doi: 10.1111/j.1365-2958.1994.tb00474.x.Mol Microbiol. 1994.PMID: 7815941