Understanding an emerging treatment population: Protocol for and baseline characteristics of a prospective cohort of people receiving treatment for pharmaceutical opioid dependence

- Nielsen, Suzanne; Lintzeris, Nicholas; Dunlop, Adrian; Demirkol, Apo; Silsbury, Catherine; Phung, Nghi; Houseman, Jennie; Larance, Briony; Murnion, Bridin; Degenhardt, Louisa; Bruno, Raimondo; Haber, Paul; Johnson, Jennifer; Hardy, Mark; Ling, Stephen; Saddler, Craig