RT Journal Article SR Electronic T1 A Clinical Comparison of Xe-127 and Xe-133 for Ventilation Studies JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 653 OP 659 VO 18 IS 7 A1 H. L. Atkins A1 H. Susskind A1 J. F. Klopper A1 A. N. Ansari A1 P. Richards A1 R. G. Fairchild YR 1977 UL http://jnm.snmjournals.org/content/18/7/653.abstract AB