An improved HPLC method to purify erythrocyte cholesterol for estimation of in vivo cholesterol synthesis using the deuterium method von Wong, William W., Hachey, David L., Clarke, Lucinda L., Zhang, Shide, Llaurador, Marisol, Pond, Wilson G.

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Comparison of two elemental-analyzer gas-isotope-ratio mass spectrometer systems in the simultaneous measurement of (13)C/(12)C ratios and carbon content in organic samples von Wong, William W, Clarke, Lucinda L, Johnson, Gregory A, Llaurador, Marisol, Klein, Peter D

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Comparison of two elemental-analyzer gas-isotope-ratio mass spectrometer systems in the simultaneous measurement of carbon-13/carbon-12 ratios and carbon content in organic samples von Wong, William W, Clarke, Lucinda L, Johnson, Gregory A, Llaurador, Marisol, Klein, Peter D

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The use of cotton balls to collect infant urine samples for 2H/ 1H and 18O/ 16O isotope ratio measurements von Wong, William W., Clarke, Lucinda L., Llaurador, Marisol, Ferlic, Laura, Klein, Peter D.

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