?url_ver=Z39.88-2004&rft_id=PQ+ETD%3A602426&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=E.G.&rft.aulast=Aguileta+Estrada&rft.au=Aguileta+Estrada%2C+E.G.&rft.date=2004&rft.tpages=175&rft.inst=University+of+London&rft.title=The+evolution+of+the+vertebrate+beta+globin+gene+family.&rft.degree=Doctoral