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Bayley PJ, Kong JY, Helmer DA, Schneiderman A, Roselli LA, Rosse SM, Jackson JA, Baldwin J, Isaac L, Nolasco M, Blackman MR, Reinhard MJ, Ashford JW, Chapman JC; MIND Study Group.Bayley PJ, et al. Among authors: helmer da.BMC Med Res Methodol. 2014 Apr 8;14:48. doi: 10.1186/1471-2288-14-48.BMC Med Res Methodol. 2014.PMID: 24713131Free PMC article.
Lincoln AE, Helmer DA, Schneiderman AI, Li M, Copeland HL, Prisco MK, Wallin MT, Kang HK, Natelson BH.Lincoln AE, et al. Among authors: helmer da.Mil Med. 2006 Jul;171(7):577-85. doi: 10.7205/milmed.171.7.577.Mil Med. 2006.PMID: 16895119
Helmer DA, Rossignol M, Blatt M, Agarwal R, Teichman R, Lange G.Helmer DA, et al.J Occup Environ Med. 2007 May;49(5):475-80. doi: 10.1097/JOM.0b013e318042d682.J Occup Environ Med. 2007.PMID: 17495689
Helmer DA, Chandler HK, Quigley KS, Blatt M, Teichman R, Lange G.Helmer DA, et al.Pain Med. 2009 Oct;10(7):1174-82. doi: 10.1111/j.1526-4637.2009.00723.x.Pain Med. 2009.PMID: 19818029