?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Pajni%2C+S&rft.aulast=Pajni&rft.aufirst=S&rft.issue=1&rft.volume=42&rft.date=January+1995&rft.issn=0022-2615&rft.atitle=Studies+on+the+genesis+of+Vibrio+cholerae+O139%3A+identification+of+probable+progenitor+strains.&rft.title=Journal+of+medical+microbiology&rft.pages=20-5&rft.genre=article