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Johnson R, Clark B, Landon M, Kauffman L, Eberts S.Johnson R, et al. Among authors: eberts s.J Am Water Resour Assoc. 2011 Jun;47(3):588-596. doi: 10.1111/j.1752-1688.2011.00526.x.J Am Water Resour Assoc. 2011.PMID: 22457571Free PMC article.