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Ashworth M, Armstrong D.Ashworth M, et al. Among authors: armstrong d.Br J Gen Pract. 2003 Nov;53(496):863-5.Br J Gen Pract. 2003.PMID: 14702906Free PMC article.
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Armstrong D, Ashworth M, Dregan A, White P.Armstrong D, et al.Br J Gen Pract. 2016 Apr;66(645):e228-33. doi: 10.3399/bjgp16X684313. Epub 2016 Mar 10.Br J Gen Pract. 2016.PMID: 26965030Free PMC article.
McDonnell L, Armstrong D, Ashworth M, Dregan A, Malik U, White P.McDonnell L, et al. Among authors: armstrong d.J Antimicrob Chemother. 2017 Nov 1;72(11):3199-3204. doi: 10.1093/jac/dkx248.J Antimicrob Chemother. 2017.PMID: 28961862