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Rantonen J, Luoto S, Vehtari A, Hupli M, Karppinen J, Malmivaara A, Taimela S.Rantonen J, et al. Among authors: karppinen j.Occup Environ Med. 2012 Jan;69(1):12-20. doi: 10.1136/oem.2009.054312. Epub 2011 May 20.Occup Environ Med. 2012.PMID: 21602539Clinical Trial.
Rantonen J, Vehtari A, Karppinen J, Luoto S, Viikari-Juntura E, Hupli M, Malmivaara A, Taimela S.Rantonen J, et al. Among authors: karppinen j.Scand J Work Environ Health. 2014 Mar;40(2):156-66. doi: 10.5271/sjweh.3398. Epub 2013 Nov 1.Scand J Work Environ Health. 2014.PMID: 24185642Free article.Clinical Trial.