Erratum
With apologies from the publishers, the final authorship in the article entitled, “Prevalence of Glaucoma in a Rural Northern China Adult Population: A Population- based Survey in Kailu County, Inner Mongolia” by Wulian Song, MD, Li Shan, MD, Fang Cheng, Pan Fan, MD, Lijuan Zhang, Wei Qu, MD, Qiuju Zhang, MPH, and Huiping Yuan, MD, PhD (Ophthalmology 2011;118:1982-88) was missing the notation that the first two authors contributed equally to the work.