1. Eco-epidemiological assessment of the COVID-19 epidemic in China, January-February 2020;Global health action,2020
2. World, Health, Organization. WHO Coronavirus Disease (COVID-19) Dashboard 2020 [Available from: https://covid19.who.int/
3. The Neurobiology of Opioid Dependence: Implications for Treatment
4. Opioid use disorder;Nature Reviews Disease Primers,2020
5. United, Nations, Office, on, Drugs, and, et al. World Drug Report 2019 2020 [Available from: https://www.unodc.org/unodc/en/frontpage/2019/June/world-drug-report-2019-35-million-people-worldwide-suffer-from-drug-use-disorders-while-only-1-in-7-people-receive-treatment.html.