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Sorensen G, Stoddard AM, LaMontagne AD, Emmons K, Hunt MK, Youngstrom R, McLellan D, Christiani DC.Sorensen G, et al. Among authors: youngstrom r.J Public Health Policy. 2003;24(1):5-25.J Public Health Policy. 2003.PMID: 12760241Clinical Trial.
Barbeau E, Roelofs C, Youngstrom R, Sorensen G, Stoddard A, LaMontagne AD.Barbeau E, et al. Among authors: youngstrom r.Am J Ind Med. 2004 Apr;45(4):371-9. doi: 10.1002/ajim.10336.Am J Ind Med. 2004.PMID: 15029570
Sorensen G, Youngstrom R, Maclachlan C, Gibson SJ, Emmons K, Johnston D, Levenstein C.Sorensen G, et al. Among authors: youngstrom r.J Public Health Policy. 1997;18(4):433-52.J Public Health Policy. 1997.PMID: 9519619Review.