That said, I don't know of a more recent systematic review of Lesson Study, so there is a danger that those last two are cherry - picked. (tdtrust.org)
Indeed, in the most recent systematic review of the literature to date, exclusive breastfeeding is now recommended for ∼ 6 months (WHO, 2001). (academic.oup.com)
Two recent systematic reviews came to similar conclusions, and these reviews, along with 3 additional observational studies, do not provide enough rigorous data to comment on the potential benefits and harms of cannabis use in patients with PTSD. (annals.org)