Term: phase iv clinical trial: 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
Candidate hypernym: clinical trial: a rigorously controlled test of a new drug or a new invasive medical device on human subjects; in the United States it is conducted under the direction of the FDA before being made available for general clinical use → 1
Candidate hypernym: queen bee: fertile egg-laying female bee → 0
Candidate hypernym: mason's level: a level longer than a carpenter's level → 0
Candidate hypernym: feather reed grass: a variety of reed grass → 0
Candidate hypernym: calamus: any tropical Asian palm of the genus Calamus; light tough stems are a source of rattan canes → 0
Candidate hypernym: prosthetist: an expert in prosthetics → 0
Candidate hypernym: juncus: type genus of the Juncaceae; perennial tufted glabrous marsh plants of temperate regions: rushes → 0
Candidate hypernym: inferior alveolar artery: the alveolar artery that goes through the mandibular canal to supply the lower teeth → 0
Candidate hypernym: fife rail: the railing surrounding the mast of a sailing vessel → 0
Candidate hypernym: jewish rye bread: (Judaism) bread made with rye flour; usually contains caraway seeds → 0
Candidate hypernym: signorina: an Italian courtesy title for an unmarried woman; equivalent to `Miss', it is either used alone or before a name → 0