?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Dahlan%2C+Afendi+Bin&rft.aufirst=Afendi+Bin&rft.aulast=Dahlan&rft.degree=Doctoral&rft.inst=University+College+London+(United+Kingdom)&rft.tpages=201&rft.title=Needle-less+skin+immunisation+using+low-frequency+ultrasound&rft.date=2007