1. United Nations on Drugs and Crime. Prevalence-general. (2021). Accessed. May 2, 2023: https://dataunodc.un.org/data/drugs/Prevalence-general.
2. United Nations on Drugs and Crime. People Who Inject Drugs. (2021). Accessed. May 2, 2023: https://dataunodc.un.org/data/drugs/People Injucting drugs.
3. Injection drug use and HIV/AIDS transmission in China;Chu TX;Cell Res,2005
4. Needle embolism in intravenous drug abuse;Monroe EJ;Radiol Case Rep,2012
5. Intravenous drug users and broken needles--a hidden risk?;Norfolk GA;Addiction,2003