?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Barnett&rft.aufirst=JH&rft.au=Barnett%2C+JH&rft.volume=7&rft.atitle=Improvement+and+decline+of+cognitive+function+in+schizophrenia+over+one+year%3A+a+longitudinal+investigation+using+latent+growth+modelling&rft.title=BMC+Psychiatry&rft.date=9+May+2007&rft.issn=1471-244X&rft.genre=article