Media type: E-Article Title: Introduction Contributor: Langman, Craig B. imprint: Springer Science and Business Media LLC, 2004 Published in: Clinical Reviews in Bone and Mineral Metabolism Language: English DOI: 10.1007/s12018-004-0008-8 ISSN: 1534-8644; 1559-0119 Keywords: Endocrinology ; Orthopedics and Sports Medicine ; Endocrinology, Diabetes and Metabolism Origination: Footnote: