Tra từ phase IV clinical trial - Từ điển WordNet v3.1

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Từ điển WordNet v3.1 - WordNet Dictionary

phase IV clinical trial

noun

sometimes the FDA approves a drug for general use but requires the manufacturer to continue to monitor its effects;
during this phase the drug may be tried on slightly different patient populations than those studied in earlier trials
• Syn:
phase IV
• Hypernyms:
clinical trial, clinical test