Rand Corporation issues PPI study findings.
D004348:Drug Labeling / Q000379:methods* / Q000592:standards; D004917:Erythromycin / Q000008:administration & dosage; D004967:Estrogens / Q000008:administration & dosage; D005479:Flurazepam / Q000008:administration & dosage; D006801:Humans; D011795:Surveys and Questionnaires; D013689:Telephone; D014481:United States; D014486:United States Food and Drug Administration
D004967:Estrogens; D004917:Erythromycin; D005479:Flurazepam