title: A tribute to Niels Lassen. December 7th, 1926--April 30th, 1997.
authors.affiliation: University of California San Francisco 94123-0542, USA.
authors.forename: J W
authors.initials: JW
authors.lastname: Severinghaus
mesh_terms: D001921:Brain / Q000502:physiology; D002560:Cerebrovascular Circulation; D003718:Denmark; D049673:History, 20th Century; D006801:Humans; D009683:Nuclear Medicine / Q000266:history; D010827:Physiology / Q000266:history