title: Liquid chromatographic determination of theophylline concentration with syringe-type minicolumns for direct plasma injection.
authors.forename: M
authors.initials: M
authors.lastname: Homma
authors.forename: K
authors.initials: K
authors.lastname: Oka
authors.forename: N
authors.initials: N
authors.lastname: Takahashi
mesh_terms: D000328:Adult; D002853:Chromatography, Liquid / Q000379:methods; D006801:Humans; D008297:Male; D013806:Theophylline / Q000097:blood*
chemical_list: D013806:Theophylline