Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleAppearance of β-lactam Resistance Genes in Agricultural Soils and Clinical Isolates over the 20<sup>th</sup> Century.AuthorsGraham, David W.; Knapp, Charles W.; Christensen, Bent T.; McCluskey, Seánín; Dolfing, JanPublicationScientific Reports, 2016, p21550ISSN2045-2322Publication typeArticleDOI10.1038/srep21550