RT Journal Article SR Electronic T1 Cognitive function and pseudoexfoliation syndrome. The Beijing Eye Study 2011 JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1215 OP 1215 DO 10.1136/bjophthalmol-2012-301906 VO 97 IS 9 A1 Xu, Liang A1 You, Qi Sheng A1 Wang, Ya Xing A1 Jonas, Jonas B YR 2013 UL http://bjo.bmj.com/content/97/9/1215.1.abstract AB