title: Bronchodilating effects of the anesthetic ketamine in an in vitro guinea pig preparation.
mesh_terms: D000403:Airway Resistance / Q000187:drug effects*; D000818:Animals; D001980:Bronchi / Q000187:drug effects; D005260:Female; D006168:Guinea Pigs; D006633:Histamine Antagonists; D066298:In Vitro Techniques; D007649:Ketamine / Q000494:pharmacology*; D008297:Male; D016210:Methacholine Chloride; D008688:Methacholine Compounds / Q000037:antagonists & inhibitors; D014132:Trachea / Q000187:drug effects
chemical_list: D006633:Histamine Antagonists; D008688:Methacholine Compounds; D016210:Methacholine Chloride; D007649:Ketamine