title: Analysis of the Essential Oil of Eupatorium cannabinum by Combined Gas Chromatography-Mass Spectrometry Using Electron Impact and Negative Ion Chemical Ionization.
authors.affiliation: Laboratory of Pharmacognosy, State University Groningen, Ant. Deusinglaan 2, NL 9713 AW Groningen.
authors.forename: H
authors.initials: H
authors.lastname: Hendriks
authors.forename: R
authors.initials: R
authors.lastname: Bos
authors.forename: A P
authors.initials: AP
authors.lastname: Bruins