TY - RPRT TI - Early postmenopausal bone loss is not associated with a decrease in circulating levels of 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, or vitamin D-binding protein. AU - J A Falch AU - H Oftebro AU - E Haug PY - 1987 DO - 10.1210/jcem-64-4-836 UR - https://pubmed.ncbi.nlm.nih.gov/3818905/ ID - 3818905 ER -