Production of osteocalcin by human bone cells in vitro. Effects of 1,25(OH)2D3, 24,25(OH)2D3, parathyroid hormone, and glucocorticoids. - Beresford,J.N.; Gallagher,J.A.; Poser,J.W.; Russell,R.G. (Metab Bone Dis Relat Res, 1984)