Some adverse effects of marijuana overlap with those of tobacco smoke. Variation in cannabis/marijuana/haschich potency, concentration (e.g. resin, hash oil), contamination with fungi (PMID 6348548) and adulteration are to be taken into account (PMID: 18494838). Reviews at PMID 24831571, 24897085, 25996274, 26935046
Last update : 25/10/2016