title: [The tramadol tree exists: its roots are in Africa].
authors.affiliation: jeanyves.nau@gmail.com
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Nau
mesh_terms: D017954:Africa South of the Sahara; D000701:Analgesics, Opioid / Q000302:isolation & purification; D049672:History, 19th Century; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D016488:Medicine, African Traditional / Q000379:methods; D009994:Osmolar Concentration; D018517:Plant Roots / Q000737:chemistry*; D019666:Rubiaceae / Q000737:chemistry*; D014147:Tramadol / Q000138:chemical synthesis / Q000737:chemistry / Q000266:history / Q000302:isolation & purification*; D014197:Trees
chemical_list: D000701:Analgesics, Opioid; D014147:Tramadol