1. Single Convention for Narcotic Drugs (1961) Single Convention for Narcotic Drugs.
http://www.unodc.org/pdf/convention_1961_en.pdf
. Accessed 17 Jan 2019
2. International Narcotics Control Board (INCB) International Narcotics Control Board (INCB).
http://www.incb.org
. Accessed 21 Jan 2019
3. Ministerie van Volksgezondheid, Welzijn en Sport CIBG.
https://english.cannabisbureau.nl/
. Accessed 16 Jan 2019
4. de Hoop B, Heerdink ER, Hazekamp A (2018) Medicinal cannabis on prescription in the Netherlands: statistics for 2003–2016. Cannabis Cannabinoid Res 3(1).
https://doi.org/10.1089/can.2017.0059
5. European Monitoring Centre for Drugs and Drug Addiction (2018) Medical use of cannabis and cannabinoids: questions and answers for policymaking. Publications Office of the European Union, Luxembourg