Vandana Singh (2021-08-04). Amgen Q2 Profit Falls On Five Prime Acquisition Related Write-off, Disputes IRS Claim On Owing $3.6B In Taxes (in en). benzinga.com. Retrieved on 2021-08-05.web.archives.org
Will Doss (2022-03-02). Intensive Crohn's treatment is safe compared to the current standard of care (in en). medicalxpress.com. Retrieved on 2022-03-12.web.archives.org