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Martinez JP, Gil ML, Casanova M, Lopez-Ribot JL, Garcia De Lomas J, Sentandreu R.Martinez JP, et al.J Gen Microbiol. 1990 Dec;136(12):2421-32. doi: 10.1099/00221287-136-12-2421.J Gen Microbiol. 1990.PMID: 2079629