title: Improved high-performance liquid chromatographic assay for cimetidine using ranitidine as an internal standard.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002927:Cimetidine / Q000097:blood*; D005663:Furans; D006146:Guanidines / Q000097:blood*; D006801:Humans; D011899:Ranitidine; D012016:Reference Values
chemical_list: D005663:Furans; D006146:Guanidines; D002927:Cimetidine; D011899:Ranitidine