Article

The accuracy, precision and reliability of measuring ventilatory rate and detecting ventilatory pause by rainbow acoustic monitoring and capnometry.

Anesth. Analg.. 2013 Jul 1;117(1):69-75.
Comparative Study

Accuracy of respiratory rate monitoring using a non-invasive acoustic method after general anaesthesia.

Br J Anaesth. 2012 May 1; 108 (5): 872-5.
Comparative Study

Accuracy of remote continuous respiratory rate monitoring technologies intended for low care clinical settings: a prospective observational study.

Can J Anaesth. 2018 Dec 1; 65 (12): 1324-1332.