- Learn about microscopic structure of bone with respect to the Haversian System, also known as osteons. Visit us (http://www.khanacademy.org/science/healthcar...

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- Find out more about identifying hemodialysis patients with mineral and bone disorder who have a higher risk of adverse clinical events.

- This findings of this study highlight a potentially strong role of sarcopenia and low bone mineral density in the risk of nonspinal fractures--but only in a subset of individuals.

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