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showed that, for urine samples, the results obtained with the CBB method do not agree with those obtained with the M-TP, BC, BTC, or PYR methods. The comparison studies showed that BC correlates better with the M-TP method than do the BTC and CBB methods for urine and CSF samples, based on the slope, intercept, and correlation (r) values.
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Poon et al. (2004) studied this question.
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