Shen, Zu T.
Sigalov, Alexander B.
Article History
Received: 3 March 2016
Accepted: 6 June 2016
First Online: 28 June 2016
Competing interests
: Alexander B. Sigalov and Zu T. Shen are employees of SignaBlok, Inc. The funders provided support in the form of salaries for authors [ABS and ZTS], but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of these authors are articulated in the ‘author contributions’ section.