1. Report of the Task Force on Youth Drug Abuse (2008), The Government of the Hong Kong Special Administrative Region, China. https://www.nd.gov.hk/en/report_youth_drug_abuse.html (accessed April 2023).
2. CRDA Statistics (2021), Narcotics Division, Security Bureau, the Government of Hong Kong Special Administrative Region, China. https://www.nd.gov.hk/en/statistics_list.htm (accessed April, 2023).
3. 2-oxo-PCE: ketamine analogue on the streets;Chong;Hong. Kong Med. J.,2017
4. Cluster of acute poisonings associated with an emerging ketamine analogue, 2-oxo-PCE;Tang;Forensic Sci. Int.,2018
5. The emergence of deschloro-N-ethyl-ketamine, a ketamine analog, in drug seizures and drug driving cases in Hong Kong;Cheng;J. Anal. Toxicol.,2020