Cardiology mediquiz. Case 5.
D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D006934:Hypercalcemia / Q000175:diagnosis; D006947:Hyperkalemia / Q000175:diagnosis; D006996:Hypocalcemia / Q000175:diagnosis*; D007008:Hypokalemia / Q000175:diagnosis