RT Journal Article SR Electronic T1 In Reply: Role of spirometry in fixed upper airway obstruction JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 379 OP 380 DO 10.3949/ccjm.93c.07002 VO 93 IS 7 A1 Johnson, Jack A1 Lukose, Karishma A1 Labanowski, Mary C. YR 2026 UL http://www.ccjm.org/content/93/7/379.2.abstract AB