2446171 CB1R cannabinoid receptor 1 812 2446176 CB1R CB1 receptor 169 2446169 CB1r cannabinoid type 1 receptor 19 2446170 CB1-R cannabinoid receptor type 1 15 2446175 CB1-R CB1 cannabinoid receptors 3 2446173 CB1-R Cannabis-1 receptor 1 2446172 CB1-R CB1 receptor overexpressing animals 1 2446174 CB1-R endocannabinoid-cannabinoid 1 receptor 1