Text and Data Mining valid from 2018-05-01
Received: 15 August 2017
Accepted: 28 March 2018
First Online: 1 May 2018
: W.J.B. is named on a provisional patent application submitted by the Boston Children’s Hospital Technology Development Office that includes parts of the signal analysis methods discussed in this article. The authors declare that they have no other competing financial or nonfinancial interests.