RT Journal Article SR Electronic T1 Usage of two systems of percutaneous MitraClip implantation JF Heart Asia FD BMJ Publishing Group Ltd, British Cardiovascular Society and Asia Pacific Heart Association SP 250 OP 251 DO 10.1136/heartasia-2013-010422 VO 5 IS 1 A1 Gary Cheung A1 Nikolaj Ihlemann A1 Olaf Franzen YR 2013 UL http://heartasia.bmj.com/content/5/1/250.abstract AB