Using gas chromatography and mass spectrometry to determine 25-hydroxy" by M.-Y. Yang, C.-Y. Huang et al.
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Medica Hospital - Serum 25-hydroxy Vitamin D test is the most accurate way to monitor the total amount of Vitamin D in your body. It is used to evaluate disorders of calcium
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A comparison of analytical methods for measuring concentrations of 25-hydroxy vitamin D in biological samples - Analytical Methods (RSC Publishing)
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