?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Raghava%2C+G.P.S.&rft.aulast=Raghava&rft.aufirst=G.P.S.&rft.volume=7&rft.date=2006&rft.issn=1471-2105&rft.atitle=Quantification+of+the+variation+in+percentage+identity+for+protein+sequence+alignments.&rft.title=BMC+bioinformatics&rft.pages=415&rft.genre=article