title: Application of mass spectrometry to the analysis of proteins containing a N-terminal pyroglutamic acid residue.
authors.affiliation: Biochemisch Laboratorium der Rijksuniversiteit, Utrecht, Holland
authors.forename: G H.
authors.initials: GH
authors.lastname: de Haas
authors.forename: F
authors.initials: F
authors.lastname: Franek
authors.forename: B
authors.initials: B
authors.lastname: Keil
authors.forename: D W.
authors.initials: DW
authors.lastname: Thomas
authors.forename: E
authors.initials: E
authors.lastname: Lederer