Research centers as in where i guess you would call "scientist" or "chemist" do their testing on cannabis... These places are probably a little hidden from the public but there are plenty in Cali. I would visit dispensaries find the most knowledgeable representative and bring him your case. Keep going to other dispensaries till you find luck with someone. I know in northern California in the Emerald triangle there was someone who did a total CBD concentrated extract for a child in dire need. The law about this is fuzzy and hard to explain but its illegal because ppl will extract all the THC making a super potent extract without the CBD compound that negates THC. But anyway what you're looking for is a CBD concentrate... I would look into this extraction process, it may be easier just to learn the process your self.