?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ramadhan%2C+Mouhammed&rft.aufirst=Mouhammed&rft.aulast=Ramadhan&rft.atitle=The+Validity+of+Health-Related+Quality+of+Life+Instruments+in+Patients+With+Late-Stage+Parkinson's+Disease&rft.title=Journal+of+Geriatric+Psychiatry+and+Neurology&rft.date=20+October+2022&rft.genre=article