这个词是什么意思？
Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D002986 · MeSH 2026。
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