Verified locator: American Review of Respiratory Disease 126(5), 788–791, 1 November 1982; DOI 10.1164/arrd.1982.126.5.788. Current primary publisher byline explicitly gives Ahmet Baydur; PubMed PMID 7149443 abbreviates A. Baydur. Abstract: ten subjects, sitting/supine/lateral positions, end-expiratory airway occlusion and spontaneous inspiratory efforts; measured esophageal-to-mouth pressure-change ratios, with some posture-dependent differences corrected by repositioning the balloon.