?url_ver=Z39.88-2004&rft_id=10.1155%2F2014%2F413614&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=H.&rft.au=Ajab%2C+H.&rft.aulast=Ajab&rft.date=2014&rft.title=The+Scientific+World+Journal&rft.atitle=Characterization+of+toxic+metals+in+tobacco%2C+tobacco+smoke%2C+and+cigarette+ash+from+selected+imported+and+local+brands+in+Pakistan&rft.volume=2014&rft.issn=1537744X&rft.genre=article