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A and D Assay, Incorporated Patents
A and D Assay, Incorporated
Sudbury, MA
No. of patents:

Patent Number Title Of Patent Date Issued
5981779 Labeled vitamin D compounds and the use thereof November 9, 1999
The present invention disclose to non-radioactive vitamin D compounds of formula (1) and methods to assay for the presence of vitamin D, vitamin D analogs and their metabolites which may be present in milk, blood or other biological fluids. The assay methods employed in this invention ma

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