Could you please comment on poor R-wave progression seen on an ECG? I know that it is often a nonspecific finding more commonly seen in women than in men, but is it also increasingly common in ...

The diagnosis is sinus tachycardia, short PR interval (enhanced AV conduction), and Duchenne muscular dystrophy. The rhythm is regular at a rate of 100 beats/min. A P wave occurs before each QRS ...