1. Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
2. Auckland Sexual Health Service, Greenlane Clinical Centre, Auckland District Health Board, Auckland, New Zealand
3. Christchurch Sexual Health Service, Addington, Christchurch, New Zealand
4. Wellington Sexual Health Service, Te Aro, Wellington, New Zealand
5. Hamilton Sexual Health, Hamilton, New Zealand