TY - JOUR AN - 30 AU - Martins,D. AU - Wolf,M. AU - Pan,D. TI - Prevalence of cardiovascular risk factors and the serum levels of 25-hydroxyvitamin D in the United States: data from the Third National Health and Nutrition Examination Survey JO - Arch Intern Med PY - 2007 VL - 167 SP - 1159-1165 M2 - 1159 DO - 10.1001/archinte.167.11.1159 ER -