Association between elevated blood glucose level and non-valvular atrial fibrillation: a report from the Guangzhou heart study oleh Lu Fu, Hai Deng, Wei-dong Lin, Shang-fei He, Fang-zhou Liu, Yang Liu, Xian-zhang Zhan, Xian-hong Fang, Hong-tao Liao, Wei Wei, Zi-li Liao, Li-hong Tang, Zu-yi Fu, Mu-rui Zheng, Shu-lin Wu, Yu-mei Xue