Culture and cannabinoid receptor gene polymorphism interact to influence the perception of happiness Matsunaga, Masahiro ; Masuda, Takahiko ; Ishii, Keiko ; Ohtsubo, Yohsuke ; Noguchi, Yasuki ; Ochi, Misaki ; Yamasue, Hidenori Abstract Publication: PLoS ONE Pub Date: December 2018 DOI: 10.1371/journal.pone.0209552 Bibcode: 2018PLoSO..1309552M