?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Chandola&rft.aufirst=Tarani&rft.au=Chandola%2C+Tarani&rft.date=12+May+2007&rft.issn=0959-535X&rft.issue=7601&rft.pages=p.990&rft.atitle=Social+inequalities+in+self+reported+health+in+early+old+age%3A+follow-up+of+prospective+cohort+study&rft.volume=334&rft.title=BMJ&rft.genre=article