Zhou, Ying
Liu, Ziying
Rothschild, Kenneth J.
Lim, Mark J.
Article History
Received: 3 February 2016
Accepted: 27 April 2016
First Online: 19 May 2016
Competing interests
: The authors have the following conflicts: Ying Zhou, Ziying Liu, Kenneth J. Rothschild and Mark J. Lim are current employees of AmberGen Incorporated, 313 Pleasant Street, Watertown, MA, 02472, USA. AmberGen Incorporated has filed patent applications on aspects of this work.