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Kumar A, Jindal N, Shukla CL, Pal Y, Ledoux DR, Rottinghaus GE.Kumar A, et al. Among authors: ledoux dr.Avian Dis. 2003 Apr-Jun;47(2):415-24. doi: 10.1637/0005-2086(2003)047[0415:EOOAOE]2.0.CO;2.Avian Dis. 2003.PMID: 12887201Clinical Trial.