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Nyman JA, Jeffery MM, Abraham JM, Jutkowitz E, Dowd BE.Nyman JA, et al. Among authors: jeffery mm.J Occup Environ Med. 2013 Nov;55(11):1356-64. doi: 10.1097/JOM.0b013e3182a4fffe.J Occup Environ Med. 2013.PMID: 24164767
Jeffery MM, Bellolio MF, Wolfson J, Abraham JM, Dowd BE, Kane RL.Jeffery MM, et al.BMJ Open. 2016 Aug 26;6(8):e011739. doi: 10.1136/bmjopen-2016-011739.BMJ Open. 2016.PMID: 27566637Free PMC article.