[1] JAMES COOK UNIV N QUEENSLAND,N QUEENSLAND CLIN SCH,TOWNSVILLE,QLD 4810,AUSTRALIA
[2] UNIV QUEENSLAND,MATER MISERICORDIAE HOSP,OFF POSTGRAD MED EDUC,BRISBANE,QLD 4101,AUSTRALIA
[3] RACGP TRAINING PROGRAM,BRISBANE,QLD,AUSTRALIA
[4] UNIV QUEENSLAND,DEPT SOCIAL & PREVENT MED,BRISBANE,QLD,AUSTRALIA