https://www.brookings.edu/wp-content/uploads/2022/08/Prescription_Drug_CPI_WP.pdf
http://www.fdf.org.uk/news.aspx?article=8062
http://www.oecd.org/eco/surveys/Boosting-productivity-and-wellbeing-OECD-economic-survey-Ireland-2018.pdf
http://www.theglobalipcenter.com/wp-content/uploads/2018/02/GIPC_IP_Index_2018.pdf