He, Yun
Wang, Lidai
Shi, Junhui
Yao, Junjie
Li, Lei
Zhang, Ruiying
Huang, Chih-Hsien
Zou, Jun
Wang, Lihong V.
Article History
Received: 12 October 2016
Accepted: 23 November 2016
First Online: 21 December 2016
Competing interests
: L.V.W. has a financial interest in Microphotoacoustics, Inc., which, however, did not support this work. The remaining authors declare no competing financial interest.