title: An ultraviolet spectrophotometric method for the determination of theophylline and theobromine in blood and tissues.
authors.forename: J A
authors.initials: JA
authors.lastname: SCHACK
authors.forename: S H
authors.initials: SH
authors.lastname: WAXLER
mesh_terms: D006801:Humans; D013056:Spectrophotometry, Ultraviolet; D013805:Theobromine; D013806:Theophylline
chemical_list: D013806:Theophylline; D013805:Theobromine