title: [All the colors of a smile].
authors.affiliation: Université Marc Bloch-Strasbourg II.
authors.forename: David
authors.initials: D
authors.lastname: Le Breton
mesh_terms: D003142:Communication; D006801:Humans; D007398:Interpersonal Relations; D010151:Paintings; D012613:Sculpture; D012904:Smiling / Q000502:physiology / Q000523:psychology*; D012919:Social Behavior; D013561:Symbolism