1. School of Nursing The University of Hong Kong Pok Fu Lam Hong Kong
2. Sticky Rice Love Hong Kong
3. Department of Family Medicine and Primary Care, School of Clinical Medicine The University of Hong Kong Pok Fu Lam Hong Kong
4. Department of Pharmacology and Pharmacy The University of Hong Kong Pok Fu Lam Hong Kong
5. Melbourne Sexual Health Centre Alfred Health Melbourne Victoria Australia
6. Central Clinical School Monash University Melbourne Victoria Australia
7. Melbourne School of Population and Global Health The University of Melbourne Melbourne Victoria Australia