1. Centre for Health Systems and Safety Research, Australian Institute of Health Innovation, Macquarie University, Sydney, NSW, Australia,
2. South Eastern Area Laboratory Services, NSW Health Pathology, Prince of Wales Hospital, Randwick, NSW, Australia,
3. Pathology North, NSW Health Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia,
4. Northern Clinical School, Sydney Medical School, University of Sydney, NSW, Australia,
5. Pathology North, NSW Health Pathology, Newcastle, NSW, Australia, and
6. Royal College of Pathologists Australasia Quality Assurance Program, St Leonards, NSW, Australia