title: Nasal methacholine and histamine reactivity during a common cold.
mesh_terms: D003139:Common Cold / Q000503:physiopathology*; D006632:Histamine; D006801:Humans; D016210:Methacholine Chloride; D008688:Methacholine Compounds; D009297:Nasal Mucosa / Q000378:metabolism*; D012912:Sneezing / Q000187:drug effects
chemical_list: D008688:Methacholine Compounds; D016210:Methacholine Chloride; D006632:Histamine