Fig. 1From: Coronary spastic angina after the administration of intravenous immunoglobulin in myasthenia gravis: a case reportElectrocardiograms recorded at baseline (base) and at angina pectoris. ST elevation is seen in leads II, III, and aVF (before), and improvements in ST elevations are seen after administration of glyceryl trinitrate (after)Back to article page