Links
[1] http://www.latimes.com/science/sciencenow/la-sci-sn-heart-attack-stroke-marijuana-20140423-story.html
[2] http://www.rethinkpot.org/tags/heart
[3] http://www.rethinkpot.org/tags/death
[4] http://www.rethinkpot.org/tags/study
[5] http://www.rethinkpot.org/tags/risks