Source:http://linkedlifedata.com/resource/umls/id/C0029453
CSP: decreased calcification, bone density, or bone mass due to inadequate osteoid synthesis.,NCI: Decreased calcification or density of bone tissue.,NCI: A condition in which there is a lower-than-normal bone mass or bone mineral density (the amount of bone mineral contained in a certain amount of bone). Osteopenia is a less severe form of bone loss than osteoporosis.