You can find all samples metadata we use in liqDB here

You can find an expression matrix for all samples here (RPM) and here (Read Counts)

If you want to download all data for a specific study please find the study you are interested in using Browse studies, and navigate to the Download tab.

For example for the study SRP029994 you can find download links in http://bioinfo5.ugr.es/liqdb/study/SRP029994#tab_downloads

If you want to download all data for a subset of specific samples, make a query using Search samples and then just navigate to the Download tab of your query.

E.g. for the example data in the main page (all serum samples from healthy women) you should click on the link and navigate to the Download tab