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Polk JE, Goebel DM, Snyder JS, Schneider AC, Johnson LK, Sengupta A.Polk JE, et al. Among authors: goebel dm.Rev Sci Instrum. 2012 Jul;83(7):073306. doi: 10.1063/1.4728415.Rev Sci Instrum. 2012.PMID: 22852684