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ClinicalTrials.gov is a website and online database of clinical research studies and information about their results. The purpose of ClinicalTrials.gov is to provide information about clinical research studies to the public, researchers, and health care professionals. The U.S. government does not review or approve the safety and science of all studies listed on this website.
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Zvdd aims to record all digital surrogates of printed works, which are available from the internet and meet certain quality criteria. This comprised all types of printed works, such as newspapers, journals, printed music, flying leaves as well as monographs or serials.