摘要 |
<p>The invention relates to a method for the standardization of the concentration of at least one analyte in a urine sample, comprising the following steps: a) determining the concentration of at least one analyte, b) determining the concentration of at least one collagen or collagen fragment, c) standardizing the concentration of the at least one analyte relative to the concentration of the at least one collagen or collagen fragment.</p> |