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PubMed instead of Google Scholar, would have to use specific search operatives to find what you need though. Also Elicit.org is a site that uses AI to find articles and break them down a little. I think with a free account you can get like x amount of searches, so may or may not be feasible for you. There’s also Scopus and Web of Science, but I have no experience using those.
I also recommend easing US restrictions on marijuana