GLOBAL DRUG SURVEY (GDS) 2021 KEY FINDINGS REPORT

WINSTOCK AR, MAIER LJ, ZHUPARRIS A, DAVIES E, PULJEVIC C, KUYPERS KPC, FERRIS JA & BARRATT MJ. (2021). 

https://www.globaldrugsurvey.com/wp-content/uploads/2021/12/Report2021_global.pdf