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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1996 1
1998 1
1999 1
2003 1
2006 1
2008 1
2022 0
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Page 1
Reproducibility and validity of a handheld spirometer.
Barr RG, Stemple KJ, Mesia-Vela S, Basner RC, Derk SJ, Henneberger PK, Milton DK, Taveras B. Barr RG, et al. Among authors: derk sj. Respir Care. 2008 Apr;53(4):433-41. Respir Care. 2008. PMID: 18364054 Free PMC article.
Nonfatal logging-related injuries in West Virginia.
Helmkamp JC, Derk SJ. Helmkamp JC, et al. Among authors: derk sj. J Occup Environ Med. 1999 Nov;41(11):967-72. doi: 10.1097/00043764-199911000-00008. J Occup Environ Med. 1999. PMID: 10570502
Injury in West Virginia: a statewide survey.
Williams JM, Derk SJ, Furbee PM. Williams JM, et al. Among authors: derk sj. Acad Emerg Med. 1996 Oct;3(10):911-6. doi: 10.1111/j.1553-2712.1996.tb03318.x. Acad Emerg Med. 1996. PMID: 8891035 Free article.