RT Journal Article SR Electronic T1 A nationwide contemporary epidemiological portrait of valvular heart diseases JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1660 OP 1662 DO 10.1136/heartjnl-2017-311472 VO 103 IS 21 A1 Marie Annick Clavel A1 Bernard Iung A1 Philippe Pibarot YR 2017 UL http://heart.bmj.com/content/103/21/1660.abstract AB