Tidmarsh, G F
Wong, R J
Stevenson, D K
Article History
Received: 3 December 2013
Revised: 21 February 2014
Accepted: 13 March 2014
First Online: 17 April 2014
Competing interests
: GFT has a financial interest in the technology behind a device that Capnia Inc. (Palo Alto, CA) is developing. DKS and RJW are unpaid consultants to Capnia Inc. and have no conflict of interest or financial disclosures to declare.