@article{doi:10.1001/archinternmed.2009.361, author = {Pietras SM and Obayan BK and Cai MH and Holick MF}, title = {VItamin d2 treatment for vitamin d deficiency and insufficiency for up to 6 years}, journal = {Archives of Internal Medicine}, volume = {169}, number = {19}, pages = {1806-1818}, year = {2009}, doi = {10.1001/archinternmed.2009.361}, URL = { + http://dx.doi.org/10.1001/archinternmed.2009.361}, eprint = {/data/Journals/InteMed/5743/ilt1026_1806_1808.pdf} }