Technical standards for respiratory oscillometry and bronchodilator response cut-offs.

Competing Interests: Conflict of interest: C. Thamrin reports intellectual property arrangements/contracts from Restech SRL, Milan, Italy; equipment on loan for research studies from Restech SRL, Milan, Italy and THORASYS Thoracic Medical Systems, Montreal, Canada; outside the submitted work. G.G. King reports grants, personal fees and other from AstraZeneca, Boehringer Ingelheim, GlaxoSmithKline, Novartis, Menarini, MundiPharma, grants from National Health and Medical Research Council, Professional Societies, The University of Sydney, and philanthropic individuals and societies, outside the submitted work. All other authors have nothing to disclose.