《英文msh词典》Clinical Trial,Phase II
[入口词] Clinical Trial,Phase II
[主题词] Clinical Trial,Phase II [Publication Type]
[英文释义] Work that is a report of a pre-planned,usually controlled,clinical study of the safety and efficacy of diagnostic,therapeutic,or prophylactic drugs,devices,or techniques based on several hundred volunteers,including a limited number of patients,and conducted over a period of about two years in either the United States or a foreign country.