?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Ryan%2C+Rachel+Mary&rft.aufirst=Rachel+Mary&rft.aulast=Ryan&rft.date=2002&rft.title=Expression+of+microneme+genes+in+Eimeria+tenella&rft.inst=UCL+(University+College+London)&rft.tpages=238&rft.degree=Doctoral