http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
method-bridging study for serum 25-hydroxyvitamin D to standardize historical radioimmunoassay data to liquid chromatography-tandem mass spectrometry
National Center for Health Statistics (U.S.)
1 online resource (15 pages) : color illustrations.
by Rosemary L. Schleicher [and ten others].
Includes bibliographical references (pages 10-11).
National Health and Nutrition Examination Survey (U.S.)
National health statistics reports ; no. 93