You asked for http://www.inspiredrc.com/36-white-paper-a-bench-study-of-polyvinylidene-fluoride-pvdf-film-sensors-and-nasal-cannula-pressure-sensors-in-various-simulated-breathing-conditions-to-identify-apnea-and-hypopnea.html, but despite our computers looking very hard, we could not find it. What happened ?