title: Enzymatic isotopic assay for human plasma histamine.
mesh_terms: D006632:Histamine / Q000097:blood*; D006637:Histamine N-Methyltransferase; D006801:Humans; D008722:Methods; D012016:Reference Values; D012436:S-Adenosylmethionine
chemical_list: D012436:S-Adenosylmethionine; D006632:Histamine; D006637:Histamine N-Methyltransferase