title: Correspondence: ketamine.
mesh_terms: D000777:Anesthetics / Q000009:adverse effects*; D003510:Cyclohexanes / Q000009:adverse effects*; D006801:Humans; D007649:Ketamine; D011015:Pneumonia, Aspiration / Q000209:etiology
chemical_list: D000777:Anesthetics; D003510:Cyclohexanes; D007649:Ketamine