title: ECG diagnostic pearls and pitfalls. 3. Drug and electrolyte effects.
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D004071:Digitalis Glycosides / Q000494:pharmacology; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000187:drug effects*; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008564:Membrane Potentials; D009203:Myocardial Infarction / Q000175:diagnosis; D011802:Quinidine / Q000494:pharmacology; D014883:Water-Electrolyte Imbalance / Q000175:diagnosis*
chemical_list: D004071:Digitalis Glycosides; D011802:Quinidine