1. Gottlieb S.FDA working to lift barriers to generic drug competition (2017).
2. 98th Congress.Drug Price Competition and Patent Term Restoration Act of 1984 (1984).
3. US Food and Drug Administration (FDA). Abbreviated New Drug Application (ANDA) . Last updated in 2018.
4. US Food and Drug Administration (FDA).Generic drug user fee amendments. Last updated in 2019.
5. IQVIA database.