1. Changes in List Prices, Net Prices, and Discounts for Branded Drugs in the US, 2007-2018
2. The high price of anticancer drugs: origins, implications, barriers, solutions
3. Ornstein C, Thomas K. Prescription drugs may cost more with insurance than without it. New York Times 2017 Dec 9. https://www.nytimes.com/2017/12/09/health/drug-prices-generics-insurance.html
4. Herman B. Americans are still struggling with drug costs. Axios, 26 Nov 2018. https://www.axios.com/americans-struggling-drug-costs-goodrx-0b487b1b-a362-4776-8f43-8b118651d606.html
5. PhRMA. Advocacy: research and development. https://www.phrma.org/advocacy/research-development