Kim G, Oh KW, Jang EH, Kim MK, Lim DJ, Kwon HS, Baek KH, Yoon KH, Lee WC, Cha BY, Lee KW, Son HY, Kang MI
There is controversy regarding definition of vitamin D inadequacy. We analyzed threshold 25-hydroxyvitamin D (25[OH]D) below which intact parathyroid hormone (iPTH) increases, and examined age- and sex-specific changes of 25(OH)D...