Subannular prosthetic valve embolization complicating transapical transcatheter aortic valve implantation: management without sternotomy. - Chandrasekhar J; Glover C; Al-atassi T; Ruel M; McPhedran R; Dickie S; Burwash I; Labinaz M; Lam BK (The Canadian journal of cardiology, 2015)