title: Retraction: 'Alendronate and vitamin D2 for prevention of hip fracture in Parkinson's disease: A randomized controlled trial,' by Sato, Y., Iwamoto, J., Kanoko, T., and Satoh, K.
abstract: The above article, published online on 14 March 2006 in Wiley Online Library (wileyonlinelibrary.com), and in Volume 21, Issue 7, Pages 924-929, has been retracted by agreement between the authors, the Editor-in-Chief, Jose A. Obeso, and Wiley Periodicals, Inc. The retraction has been agreed due to an acknowledgement from the authors that the co-authors did not participate in study design, data collection, data analysis, interpretation of data and drafting the manuscript. Thus all co-authors are honorary. Reference Sato, Y., Iwamoto, J., Kanoko, T., and Satoh, K. (2006) Alendronate and vitamin D2 for prevention of hip fracture in Parkinson's disease: A randomized controlled trial. Mov Disord. doi: 10.1002/mds.20825.