id	domain	url
cannabis-20	dx.doi.org	http://dx.doi.org/10.26828/cannabis.2018.01.002
cannabis-20	www.ptsd.va.gov	https://www.ptsd.va.gov/professional/cooccurring/marijuana_use_ptsd_veterans.asp
cannabis-20	www.dea.gov	https://www.dea.gov/docs/dangersconsequences-marijuana-abuse.pdf
cannabis-20	creativecommons.org	https://creativecommons.org/licenses/by/4.0
cannabis-20	creativecommons.org	https://creativecommons.org/licenses/by/4.0