Calcified Tissue International was founded in 1967 under the name Calcified Tissue Research. Vols. 1-19 were edited by B.E.C. Nordin, F.G.E. Pautard, D. B. Scott, B.A. Friedman; Vols. 20-22 by B.E.C. Nordin, F.G.E. Pautard, B.A. Friedman, L. Klein; Vols. 23-24 by W.D. Armstrong. Beginning with Vol. 27 in 1979, the journal was renamed Calcified Tissue International and was edited by L. V. Avioli until 1999. Since Volume 66, the journal has been co-edited by Drs. R. Civitelli, K.A. Hruska, and S. Ralston. Starting with Volume 76, the journal will be co-edited by Drs. R. Civitelli and S. Ralston. Calcified Tissue International publishes original research emphasizing the structure and function of bone and other mineralized systems in living organisms. It includes reports on connective tissues and cells, ion transport, and metabolism of hormones, nutrition, mineralized tissue ultrastructure, molecular biology, and research on humans which reveal important facets of the skeleton or bear upon bone and mineral metabolism. The Journal serves as a forum to explore biochemical, biophysical, molecular, and clinical aspects of the structure, function, and metabolism of bone and other mineralized systems in living organisms. It includes reports on connective tissues and cells, ion transport, and metabolism of hormones, nutrition, mineralized tissue ultrastructure, molecular biology, and research on humans that reveal important facets of the skeleton or bear upon bone and mineral metabolism.