RT Journal Article SR Electronic T1 Ventilation-Perfusion Relationship in Humans Measured by Scintillation Scanning JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 450 OP 456 VO 9 IS 8 A1 Asher Marks A1 Isaac Chervony A1 Robert Lankford A1 Edward M. Smith A1 Albert J. Gilson A1 William Smoak YR 1968 UL http://jnm.snmjournals.org/content/9/8/450.abstract AB