[1] Medtronic Plc, Mounds View, CA USA
[2] Cardiocetr Ticino, Lugano, Switzerland
[3] Christ Hosp, Ohio Heart & Vasc Ctr, Cincinnati, OH 45219 USA
[4] Kinki Univ, Sch Med, Osaka 589, Japan
[5] Catharina Hosp, Eindhoven, Netherlands
[6] Royal Jubilee Hosp, Victoria, BC, Canada
[7] Bakken Res Ctr, Maastricht, Netherlands
[8] Virginia Commonwealth Univ, Med Coll Virginia, Richmond, VA 23284 USA