title: Coronary Artery to Right Atrium Fistula Associated With First Degree Atrioventricular Block: A Rare Association.
authors: Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, Singapore, China.
authors: Raymond C C
authors: RC
authors: Wong
authors: Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.
authors: Swee Guan
authors: SG
authors: Teo
authors: Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.
authors: James W L
authors: JW
authors: Yip