?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Liang%2C+Jianning&rft.aufirst=Jianning&rft.aulast=Liang&rft.date=2002&rft.inst=UCL+(University+College+London)&rft.degree=Doctoral&rft.title=A+study+of+the+epidermoid+formation+and+its+relation+to+cholesteatoma&rft.tpages=164