Percutaneous device closure of paravalvular leak: combined experience from the United Kingdom and Ireland by Calvert, P, Northridge, D, Malik, I, Shapiro, L, Ludman, P, Qureshi, S, Mullen, M, Henderson, R, Turner, M, Been, M, Walsh, K, Casserly, I, Morrison, L, Walker, N, Thomson, J, Spence, M, Mahadevan, V, Hoye, A, MacCarthy, P, Daniels, M, Clift, P, Davies, W, Adamson, P, Morgan, G, Aggarwal, S, Ismail, Y, Ormerod, J, Khan, H, Chandran, S, de Giovanni, J, Rana, B, Ormerod, O, Hildick-Smith, D