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Brandt CM, Duffy MC, Berbari EF, Hanssen AD, Steckelberg JM, Osmon DR.Brandt CM, et al. Among authors: steckelberg jm.Mayo Clin Proc. 1999 Jun;74(6):553-8. doi: 10.4065/74.6.553.Mayo Clin Proc. 1999.PMID: 10377928