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Midthun K, Halsey NA, Jett-Goheen M, Clements ML, Steinhoff M, King JC, Karron R, Wilson M, Burns B, Perkis V, et al.Midthun K, et al. Among authors: clements ml.J Infect Dis. 1991 Oct;164(4):792-6. doi: 10.1093/infdis/164.4.792.J Infect Dis. 1991.PMID: 1654365Clinical Trial.