Cortisol-to-cortisone and testosterone-to-androstenedione concentration ratios in nails: Their determination methods based on LC/MS/MS and differences from the serum concentration ratios in the literature
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A fingernail clipping is expected to be a specimen suited for the detection of the medium-to-long term abnormal production of steroids. There are reports demonstrating that the concentration ratios of cortisol (F) to cortisone (E) and testosterone (T) to andro... ...
