Watson V, Dibben C, Cox M, Atherton I, Sutton M, Ryan M. Testing the expert based weights used in the UK's Index of Multiple Deprivation (IMD) against three preference-based methods. Soc Indic Res. 2019 Feb 1;144:1055-74. doi: 10.1007/s11205-018-02054-z
Williams RE, Bosnic N, Sweeney CT, Duncan AW, Levine KB, Brogan M, Cook SF. Prevalence of opioid dispensings and concurrent gastrointestinal medications in Quebec. Pain Res Manag. 2008;13(5):395-400.