RT Journal Article SR Electronic T1 133Xe Ventilatory Studies in α1-Antitrypsin Deficiency JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 5 OP 13 VO 14 IS 1 A1 R. J. Fallat A1 M. R. Powell A1 F. Kueppers A1 E. Lilker YR 1973 UL http://jnm.snmjournals.org/content/14/1/5.abstract AB