There is a long-standing tradition in cannabis research of confusing the dose. See: Rodent studies using insane super-doses injected directly with the equivale

There is a long-standing tradition in cannabis research of confusing the dose. See: Rodent studies using insane super-doses injected directly with the equivalent of 140 joints+ every day, Marinol vs cannabis, claiming 5% THC cannabis as "high dose" in research, studies citing 'potency increase' as proof of increasing risk without controlling for dose adjustments, driving impairment studies using blood levels as measurement, etc.