It isn't that hard to do
Our study focused on evaluating the potential harmful effects of chronic, prenatal THC exposure by studying its impact on fetal neurodevelopment in a rhesus macaque model using a multi-modal approach of advanced in utero imaging of the fetal brain across gestation combined with molecular and tissue studies
She worked undercover in a laboratory for seven days, during which time she filmed it all, and after she left she wrote a paper on her experiences, "The Smoking Beagles," which was eventually released in 1975, exposing the tobacco companies' cruel animal experiments and their scandalous behavior of deceiving the general public with false results
Smoking can also increase the risk of IBS and IBD, associated with constipation
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Eric Clapton, Derek Taylor and Peter Blake, 24 Nights , Genesis Publications, 2 volumes, 1992, 198 and 64 pp