1. Silver MD. 2001; Use of ergogenic aids by athletes. J Am Acad Orthop Surg. 9:(1)61–70.
2. Finlay M, Plecket H. 1976.The Olympic Games: The first hundred years. Chatto and Windus; London:
3. Berentsen A. 2002; The economics of doping. Eur J Polit Economy. 8:109–112.
4. Mangi RJ, Jokl P. 1981; Drugs and sport. Conn Med. 45:637–641.
5. www.wada-ama.org/en/dynamic.ch2?pageCategory.id
= 312