RT Journal Article SR Electronic T1 Quantitative Evaluation of Regional Pulmonary Ventilation Using PET and Nitrogen-13 Gas JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 268 OP 273 VO 27 IS 2 A1 Senda, Michio A1 Murata, Kiyoshi A1 Itoh, Harumi A1 Yonekura, Yoshiharu A1 Torizuka, Kanji YR 1986 UL http://jnm.snmjournals.org/content/27/2/268.abstract AB