Xu, Yuqun http://orcid.org/0000-0002-7454-0937
Liu, Lingwen
Nakamura, Akira http://orcid.org/0000-0001-7733-4007
Someya, Shinichi http://orcid.org/0000-0001-9895-6227
Miyakawa, Takuya
Tanokura, Masaru http://orcid.org/0000-0001-5072-2480
Article History
Received: 13 April 2017
Accepted: 8 August 2017
First Online: 29 August 2017
Competing Interests
: The authors declare that they have no competing interests.