65620
Modafinil is classified as a Schedule IV controlled substance under United States federal law ; it is illegal to import by anyone other than a DEA-registered importer without a prescription .
 United States, DEA-registered
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States, DEA-registered