Wall Street analysts who monitor the makers of these implantable defibrillators - companies such as Boston Scientific, Medtronic and St. Jude Medical - paid heed to the new study.

Objective To study the left atrial stunning after cardioversion on atrial fibrillation with normal echocardiography and quantitative tissue velocity imaging.

Applying complex variables, the usual forms of Hamilton equation and Schrodinger equation can be changed into a same form, etc.