23 bestselling e-books from Cardiotext in one convenient collection — with titles by Kenneth Ellenbogen, Mark Estes, Sanjeev Saksena, Roderick Tung, Samuel Asirvatham, Paul Friedman, David Hayes, Yen Ho, George Klein and other master teachers of electrophysiology. Includes titles that will provide a valuable review for a wide variety of professionals — physicians, associated professionals, nurses and technicians — preparing for certification and re-certification examinations in electrophysiology.