Gravar-mail: Response to Letter to the Editor on Article: Stellpflug SJ, Fritzlar SJ, Cole JB, Engebretsen KM, Holger JS. Cardiotoxic Overdose Treated with Intravenous Fat Emulsion and High-dose Insulin in the Setting of Hypertrophic Cardiomyopathy. J Med Toxicol 2011; 7(2):151–3