Impact of renal function variability on long-term prognosis in ischemic stroke patients with atrial fibrillation oleh Xiao Wang, Chun-fung Sin, Kay-Cheong Teo, William C. Y. Leung, Yuen-Kwun Wong, Roxanna K. C. Liu, Joshua W. Fok, Bonaventure Y. Ip, Hon Hang Kwan, Tsz Ching Lee, Bun Sheng, Edwin Kin-Keung Yip, Desmond Y. H. Yap, Hao Luo, Hao Luo, Kui-Kai Lau, Kui-Kai Lau