The article "Metabolic Alterations in Parkinson's Disease after Thalamotomy, as Revealed by 1H MR Spectroscopy" by Hyun-Man Baik, Bo-Young Choe, Hyoung-Koo Lee, Tae-Suk Suh, Byung-Chul Son, Jae-Mun Lee, published in Korean Journal of Radiology(2002; 3:180-188) is for the most part identical to an article by Hyun-Man Baik, entitled "Proton MR spectroscopic changes in Parkinson's diseases after thalamotomy" published in European Journal of Radiology (2003;47:179-187). The corresponding author (BY Choe) has been contacted and has agreed that the two studies are the same.