FAQs ==== How can I check whether the database contains enough subjects for my reasearch project? --------------------------------------------------------------------------------------- When you :ref:`setup filters for a study ` you can see the number of potential matches in the database. In order to do that you first need to :ref:`create a study `. It is not a problem if you do not yet know the details of the study. Anything you enter can still be changed later. You can also delete this study and create a fresh one once you are ready. How can I contact subjects by pseudonym after the study is finished? -------------------------------------------------------------------- Finding subjects by pseudonym is no longer possible once the study has finished. If you need to contact a subject after the study is finished we recommend to :ref:`resume the study ` temporarily.