“Rx Price Watch Report: Trends in Retail Prices of Specialty Prescription Drugs Widely Used by Older Americans, 2017 Year-End Update,” by Leigh Purvis and Dr. Stephen Schondelmeyer (June 2019, .pdf format, 25p.).
www.aarp.org/ppi/info-2019/trends-in-retail-prices-of-drugs.html?INTCMP=RDRCT-PPI-HEALTH-040919
