Dr Mary Ann Johnson, Upper GI & General Surgeon, Box Hill, Fitzroy, Melbourne, Shepparton, VIC / Advanced Treatments / Upper GI
  • Royal Australasian College of Surgeons
  • St Vincent's Private Hospital
  • Gastroenterological Society of Australia
  • Gastroenterological Society of Australia
  • Monash University
  • Australia and New Zealand Hepatic, Pancreatic and Biliary Association
  • Australia & New Zealand Gastro Oesophageal Surgery Association
  • Eastern Health
  • Royal Australasian College of Surgeons
  • Knox Community Hospital
  • Society for Surgery of the Alimentary Tract
  • Goulburn Valley Health
  • Epworth Eastern Hospital
  • General Surgeons Australia
  • Association of Upper Gastrointestinal Surgeons (AUGIS) of Great Britain and Ireland
  • Association for Academic Surgery