TY - JOUR T1 - Use of <sup>13</sup>N in Studies of Airway Closure and Regional Ventilation JF - Journal of Nuclear Medicine JO - J Nucl Med SP - 719 LP - 723 VL - 12 IS - 11 AU - Reginald Greene AU - Bernard Hoop AU - Homayoun Kazemi Y1 - 1971/11/01 UR - http://jnm.snmjournals.org/content/12/11/719.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -