The Prognostic Scoring System Establishment and Validation for Chronic Atrial Fibrillation Patients Receiving Modified Cox-Maze IV and Concomitant Cardiac Surgery. - Tsai, Feng-Chun; Ho, Heng-Tsan; Chang, Jen-Ping; Tsai, Feng-Chang; Chu, Jaw-Ji; Lin, Pyng-Jing (PLoS ONE, 2015)