Colombia became on Tuesday the latest in a growing number of nations around the world to legalise the use of cannabis for medical reasons.
However the rules vary widely across continents, with some countries permitting cannabis cultivation and others only allowing pharmaceuticals extracted from the drug.
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http://www.wort.lu/en/lifestyle/status-around-the-world-medical-marijuana-gains-ground-globally-567aedd40da165c55dc50075