If you are interested in clinical data, you type the compound name in your query starting by “endogenous”, then you will have the whole list of biomarkers included in DIDB. Please note that if the compound can also be administered as a drug, clinical studies involving exogenous administration are entered under the compound name rather than “endogenous [compound name]”. Therefore, you should also search using the compound name alone to capture those studies. If you are interested in in vitro data, you can simply search using the compound name directly without adding “endogenous”.