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Knapik JJ, Darakjy S, Swedler D, Amoroso P, Jones BH.Knapik JJ, et al. Among authors: swedler d.Aviat Space Environ Med. 2008 Apr;79(4):408-15. doi: 10.3357/asem.2218.2008.Aviat Space Environ Med. 2008.PMID: 18457298
Knapik JJ, Spiess A, Swedler D, Grier T, Darakjy S, Amoroso P, Jones BH.Knapik JJ, et al. Among authors: swedler d.Aviat Space Environ Med. 2008 Jul;79(7):689-94. doi: 10.3357/asem.2273.2008.Aviat Space Environ Med. 2008.PMID: 18619129
Knapik JJ, Grier T, Spiess A, Swedler DI, Hauret KG, Graham B, Yoder J, Jones BH.Knapik JJ, et al.BMC Public Health. 2011 Dec 13;11:920. doi: 10.1186/1471-2458-11-920.BMC Public Health. 2011.PMID: 22166096Free PMC article.