?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Gimeno%2C+D&rft.aufirst=D&rft.aulast=Gimeno&rft.atitle=Psychosocial+factors+and+work+related+sickness+absence+among+permanent+and+non-permanent+employees&rft.volume=58&rft.date=October+2004&rft.title=J+EPIDEMIOL+COMMUN+H&rft.pages=870+-+876&rft.issn=0143-005X&rft.issue=10&rft.genre=article