What is the difference between (有什麼不同)

What is the difference between (有什麼不同)

What is the difference between clinical research and clinical trials? (臨床研究和臨床試驗有什麼不同？)

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資訊來源：

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Placeholder 湯偉晉編寫的英文字典

Placeholder 湯偉晉編寫的英文字典

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