A biobank is a physical place which stores biological specimens. In some cases, participant data is also collected and stored. Access policies details may vary across biobanks but generally involve obtaining ethics approval from institutional review boards (IRB) and scientific review or peer review approval from the institutions under which the biobanks operate as well as Ethics approval from the institutions where the research projects will be undertaken. The samples and data are safeguarded so that researchers can use them in experiments deemed adequate. This article contains a list of biobanks.[citation needed]