Editorial: The determination of circulating 25-hydroxyvitamin D: no easy task.
Hollis
Bruce W
BW
D006403:Hematologic Tests / Q000592:standards; D006801:Humans; D015203:Reproducibility of Results; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood*
D014807:Vitamin D; C104450:25-hydroxyvitamin D