The missing waveform information in the orthogonal electrocardiogram (Frank leads). I. Where and how can this missing waveform information be retrieved?
D000704:Analysis of Variance; D000787:Angina Pectoris / Q000175:diagnosis; D002037:Bundle-Branch Block / Q000175:diagnosis; D006332:Cardiomegaly / Q000175:diagnosis; D003936:Diagnosis, Computer-Assisted; D004562:Electrocardiography; D004566:Electrodes; D006352:Heart Ventricles; D006801:Humans; D008722:Methods; D009203:Myocardial Infarction / Q000175:diagnosis