- Invited letter concerning: experience with 205 procedures of transcatheter closure of ductus arteriosus in 182 patients, with special reference to residual shunts and long-term follow-up (J Thorac Cardiovasc Surg 1992;104:1721-7). Lupinetti, F.M., Bove, E.L. J. Thorac. Cardiovasc. Surg. (1993)