Daniel Ari Kapner, 'Infofacts Resources: Ephedra and Energy Drinks on College Campuses," Accessed 26th April 2008, Available at, http://www.higheredcenter.org/pubs/factsheets/energy-drinks.html
Michael P. Schaefer, Jay Smith, Diane L. Dahm and Matthew C. Sorenson, 'Ephedra Use in a Select group of Adolescent Athletes'. Journal of Sports Science and Medicine (2006) 5, 407-414, available at http://www.jssm.org/vol5/n3/6/v5n3-6pdf.pdf
3) Robert a. Robergs1, Tommy Boone2, Donna Lockner3, "Exercise Physiologists Should not Recommend the Use of Ephedrine and Related Compounds as Ergogenic Aids or Stimulants for Increased Weight Loss," Journal of Exercise Physiology Online, Volume 6 Number 4 November 2003, available at http://faculty.css.edu/tboone2/asep/RobergsV2.doc
4) Charles N. Krome, 'Cardiac Arrhythmia in a Professional Football Player. Was Ephedrine to Blame?' The physician and Sportsmedicine Vol31, No 12, Dec 2003.