title: Premarketing trials: too few patients.
mesh_terms: D002986:Clinical Trials as Topic / Q000331:legislation & jurisprudence / Q000379:methods*; D017277:Drug Approval / Q000331:legislation & jurisprudence; D015507:Drugs, Investigational / Q000009:adverse effects / Q000627:therapeutic use*; D005060:Europe; D005062:European Union; D006077:Government Agencies; D006291:Health Policy; D006801:Humans; D061214:Patient Safety; D018570:Risk Assessment; D012307:Risk Factors; D018401:Sample Size
chemical_list: D015507:Drugs, Investigational