title: Electronic device for the recording of isopressure-flow-volume (i.p.f.v.) curves.
mesh_terms: D000328:Adult; D004582:Electronics, Medical; D005540:Forced Expiratory Flow Rates; D006801:Humans; D008297:Male; D008449:Maximal Expiratory Flow-Volume Curves; D008875:Middle Aged; D012129:Respiratory Function Tests / Q000295:instrumentation