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4. Massachusetts Health Policy Commission. Prescription drug coupon study: report to the Massachusetts legislature. Published July 2020. Accessed December 14, 2020. https://www.mass.gov/doc/prescription-drug-coupon-study/download
5. Wood? J; California State Assembly. Assembly bill 265: prescription drugs: prohibition on price discount. Published October 9, 2017. Accessed December 14, 2020. https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB265