?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.issue=1-2&rft.volume=153&rft.date=30+August+1992&rft.issn=0022-1759&rft.atitle=Calculation+of+antibody+and+antigen+concentrations+from+ELISA+data+using+a+graphical+method.&rft.title=Journal+of+immunological+methods&rft.pages=263-4&rft.genre=article