Responses of the growth hormone (GH) and insulin-like growth factor axis to exercise, GH administration, and GH withdrawal in trained adult males: a potential test for GH abuse in sport. - Wallace,JD.; Cuneo,RC.; Baxter,R.; Ørskov,H.; Keay,N.; Pentecost,C.; Dall,R.; Rosén,T.; Jørgensen,JO.; Cittadini,A.; Longobardi,S.; Sacca,L.; et al. (J Clin Endocrinol Metab, 1999)