Vitamin D, a steroid hormone, has mainly been known for its effects on bone and osteoporosis. The current therapeutic practices expand into such markets as cancer research, pediatrics, nephrology, dermatology, immunology, and genetics. This 3e includes over 100 chapters covering everything from chemistry and metabolism to mechanisms of action, diagnosis and management, new analogs, and emerging therapies. This complete reference works is a must-have resource for anyone working in endocrinology, osteology, bone biology, or cancer research. *Most comprehensive, up-to-date two-volume set on Vitamin D *Initial chapters cover the chemistry and metabolism of vitamin D, role in mineralization, other target organs, and general physiological effects *Second volume is more clinically oriented addressing deficiency problems (including diagnosis, interactions in the endocrine system, and involvement in malignancies) *Further sections on emerging uses for treatments of auto-immune diseases and diabetes *New chapters on squamous cell cancer, brain cancer, thyroid cancer and many more *Over 600 illustrations and figures available on CD