《英文msh词典》Clinical Trial,Phase IV
[入口词] Clinical Trial,Phase IV
[主题词] Clinical Trial,Phase IV [Publication Type]
[英文释义] Work that is a report of a planned post-marketing study of diagnostic,therapeutic,or prophylactic drugs,devices,or techniques that have been approved for general sale after clinical trials,phases I,II,and III. These studies,conducted in the United States or a foreign country,often garner additional data about the safety and efficacy of a product.