The impact of telephone follow up on adverse events for Aboriginal people with chronic disease in new South Wales, Australia: a retrospective cohort study oleh Amanda Jayakody, Erin Passmore, Christopher Oldmeadow, Jamie Bryant, Mariko Carey, Eunice Simons, Aaron Cashmore, Louise Maher, Kiel Hennessey, Jacinta Bunfield, Maurice Terare, Andrew Milat, Rob Sanson-Fisher