Esophageal perforation during left atrial radiofrequency ablation: Is the risk too high? - Doll,N.; Borger,M.A.; Fabricius,A.; Stephan,S.; Gummert,J.; Mohr,F.W.; Hauss,J.; Kottkamp,H.; Hindricks,G. (J Thorac Cardiovasc Surg, 2003)