Responses of markers of bone and collagen turnover to exercise, growth hormone (GH) administration, and GH withdrawal in trained adult males. - Wallace,J.D.; Cuneo,R.C.; Lundberg,P.A.; Rosen,T.; Jorgensen,J.OL.; Longobardi,S.; Keay,N.; Sacca,L.; Christiansen,J.S.; Bengtsson,B.A.; Sonksen,P.H. (J Clin Endocrinol Metab, 2000)