prithvi2911

ecg emphysema ekg smoker’s lung chou’s ecg criteria for copd multifocal atrial tachycardia or mat schamroth’s sign criteria for copd chronic obstructive lung disease (cold) chronic obstructive airway disease (coad) chronic bronchitis chou's ecg criteria for copd ecg in emphysema chronic obstructive lung diseases copd and heart ecg patterns in copd chronic obstructive pulmonary diseases ekg in ccopd smoker's lung