@article{doi:10.1001/archinternmed.2008.604, author = {Ginde AA and Liu MC and Camargo CA and Jr}, title = {DEmographic differences and trends of vitamin d insufficiency in the us population, 1988-2004}, journal = {Archives of Internal Medicine}, volume = {169}, number = {6}, pages = {626-632}, year = {2009}, doi = {10.1001/archinternmed.2008.604}, URL = { + http://dx.doi.org/10.1001/archinternmed.2008.604}, eprint = {/data/Journals/INTEMED/9894/ioi80206_626_632.pdf} }