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The following article from Headache: The Journal of Head and Face Pain, “Prevalence and Burden of Headache Disorders: A Comparative Regional Study in China,” by Ning Luo PhD, Yannan Fang PhD, Feng Tan MD, Qian Zhang MD, Daliang Zou MD, Xiutang Cao PhD, Xuehua Xu MD, Hua Bai MD, Jiangang Ou MD, Haike Wu MD, Zilong Chen MD, Yane Zhou MD, Saiying Wan MD, Yan Hong MD, Jingliang Wang MD, Minghui Ding MD, Aiwu Zhang PhD, Daoyuan Zhu MD, Jun Dun PhD, published online on November 10, 2010 (DOI: 10.1111/j.1526-4610.2010.01795.x) on Wiley Online Library (http://www.onlinelibrary.wiley.com), has been retracted per agreement between the authors, the journal's Editor-in-Chief, John F. Rothrock, and Wiley Periodicals, Inc. This retraction has been made due to the article having been erroneously submitted to the journal prematurely in non-final form and without all authors having agreed to publication.