Citation

O'Neil MJ, Smith A, Heckelman PE, Budavari S, editors. 2009. The Merck Index [Online]: An Encyclopedia of Chemicals, Drugs, and Biologicals, 14th edition. Whitehouse Station (NJ): Merck & Co., Inc. [Accessed 2010 February 01]. Available from: http://www.medicinescomplete.com/mc/merck/current/03608.htm?q=ephedrine&t=search&ss=text&p=1_hit