Prescription to over-the-counter drug switches.
Rheinstein
P H
PH
U.S. Food and Drug Administration, Rockville, Maryland, USA.
D011307:Drug Prescriptions / Q000706:statistics & numerical data*; D006801:Humans; D004366:Nonprescription Drugs / Q000627:therapeutic use*; D014481:United States; D014486:United States Food and Drug Administration
D004366:Nonprescription Drugs