title: Studies on tetrahydroisoquinolines (THI). I. Bronchodilator activity and structure-activity relationship.
mesh_terms: D000818:Animals; D001993:Bronchodilator Agents / Q000494:pharmacology*; D055598:Chemical Phenomena; D002621:Chemistry; D004837:Epinephrine / Q000494:pharmacology; D004983:Ethanolamines / Q000494:pharmacology; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology; D011804:Quinolines / Q000494:pharmacology*; D014132:Trachea / Q000187:drug effects*
chemical_list: D001993:Bronchodilator Agents; D004983:Ethanolamines; D011804:Quinolines; D007545:Isoproterenol; D004837:Epinephrine