1. Kaiser Family Foundation. Poll: nearly 1 in 4 Americans taking prescription drugs say it’s difficult to afford their medicines, including larger shares among those with health issues, with low incomes and nearing Medicare age. March 1, 2019. Accessed April 16, 2022. https://www.kff.org/health-costs/press-release/poll-nearly-1-in-4-americans-taking-prescription-drugs-say-its-difficult-to-afford-medicines-including-larger-shares-with-low-incomes/
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3. Connection between self-stigma, adherence to treatment, and discontinuation of medication;Kamaradova;Patient Prefer Adherence,2016
4. Educational intervention for older people with asthma: a randomised controlled trial;Goeman;Patient Educ Couns,2013