RT Journal Article SR Electronic T1 Respiratory Gating by Impedance Plethysmography JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1142 OP 1143 VO 25 IS 10 A1 Michael W. Vannier YR 1984 UL http://jnm.snmjournals.org/content/25/10/1142.abstract AB