RT Journal Article SR Electronic T1 A High-Frequency Ultrasonic Nebulizer System for Radioaerosol Delivery JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 707 OP 710 VO 17 IS 8 A1 Richard D. Wasnich YR 1976 UL http://jnm.snmjournals.org/content/17/8/707.abstract AB