?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Lee%2C+Yang+Koo&rft.aulast=Lee&rft.aufirst=Yang+Koo&rft.date=2015&rft.issn=1225-6463&rft.atitle=Dual-phase+approach+to+improve+prediction+%C3%B2+heart+disease+in+mobile+environment&rft.title=ETRI+Journal&rft.genre=article