?url_ver=Z39.88-2004&rft_id=10.1166%2Fasl.2013.4500&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M.F.&rft.aulast=Khan&rft.au=Khan%2C+M.F.&rft.pages=1260-1264&rft.atitle=Investigation+of+low+back+pain+using+system+modeling&rft.issue=5&rft.volume=19&rft.issn=19366612&rft.date=2013&rft.title=Advanced+Science+Letters&rft.genre=article