TY - JOUR T1 - Changing epidemiology and natural history of valvular heart disease JF - Clinical Medicine JO - Clin Med SP - 168 LP - 171 DO - 10.7861/clinmedicine.10-2-168 VL - 10 IS - 2 AU - Simon Ray A2 - Prendergast, Bernard MacCarthy, Philip Y1 - 2010/04/01 UR - http://www.rcpjournals.org/content/10/2/168.abstract ER -