1. D. S. Kronfeld , J. Am. Vet. Med. Ass. 195 , 288 ( 1989 ).
2. Lilly Research Laboratories Human Growth Horgenicity (Eli Lilly and Company Indianapolis IN 1987); M. Crawford Science 235 1454 (1987).
3. A. D. Rogol , Execmise Sports Sci. Rev. 17 , 353, 1989.
4. P. Kimmage , Bicycling 31 (no. 6), 48 ( 1990 ).
5. D. S. Kronfeld , Lg. Anim. Vet. 42 (no. 8), 14 ( 1987 ); ibid. 44 (no. 5), 6 (1989).